Lenguia | B1 Serbian Grammar: 63 Topics & Examples

When you add a prefix to a Serbian verb, two things usually happen at once. First, the verb becomes perfective (svršeni) — it now describes one completed action. Second, the prefix often changes the meaning of the verb, not just its aspect. Take the verb pisati (to write). Add na- and you get napisati, which is just the completed version of writing. But add pre- and you get prepisati (to copy out), and add pot- and you get potpisati (to sign). Each prefix carries its own meaning. So when you meet a prefixed verb, ask two questions: is it now perfective, and what new meaning did the prefix bring? Learning the common prefixes helps you guess the meaning of many new verbs.

Key rule

A prefix usually makes a verb perfective AND often changes its meaning — learn both the aspect and the new meaning of each prefixed verb.

Examples

Moram da napišem pismo do sutra.
Moram da pišem pismo do sutra ujutru gotovo.
The deadline 'do sutra' calls for a completed result, so the perfective napišem (na- = finish writing) is correct; pisati stays imperfective.
Učenik je prepisao ceo tekst u svesku.
Učenik je napisao ceo tekst iz knjige u svesku.
Copying out an existing text is prepisati (pre-); napisati would mean composing it himself, a different meaning.
Direktor je potpisao ugovor.
Direktor je popisao ugovor.
To sign is potpisati (pot- = under, signing under the text); popisati means 'to list/take an inventory', a wrong meaning here.

Common mistakes

Treating a lexical prefix as if it only marked aspect
Prepisao sam pismo prijatelju.
Napisao sam pismo prijatelju.
prepisati means 'copy out', not just 'write'; for the completed action of writing a letter use napisati, where na- is the aspect-only prefix.
Keeping the imperfective when a completed result is meant
Juče sam pisao i poslao pismo.
Juče sam napisao i poslao pismo.
A finished, single action paired with another completed verb needs the perfective napisati; pisao describes an ongoing process.

B1Aspect

Secondary Imperfectives (-ava-/-iva-)

Sekundarni nesvršeni vid — -ava-/-iva-

Sometimes a verb already has a prefix that made it perfective, but you still need an imperfective version of that exact meaning. Serbian solves this with the suffixes -ava- and -iva-. You take the prefixed perfective and add the suffix to turn it back into an imperfective. For example, prepisati (to copy out, perfective) becomes prepisivati (to be copying out, imperfective). dati (to give) becomes davati, zapisati becomes zapisivati, kupiti becomes kupovati. These are called secondary imperfectives because they are built on top of a perfective. They keep the meaning the prefix added but let you talk about the action as ongoing, repeated or habitual. This suffix is very productive, so you will meet it constantly.

Key rule

To get an imperfective of a prefixed perfective, add -iva-/-ava- to the stem (prepisati → prepisivati); it keeps the meaning but lets you express ongoing or repeated action.

Examples

Svako jutro zapisujem svoje snove.
Svako jutro zapišem svoje snove.
A daily habit needs the secondary imperfective zapisivati (zapisujem); the perfective zapišem cannot express a repeated present.
Upravo prepisujem beleške sa table.
Upravo prepišem beleške sa table.
An action in progress right now requires the imperfective prepisivati; the perfective prepisati has no present-time meaning.
Prodavac nam svaki dan prodaje svežu robu.
Prodavac nam svaki dan proda svežu robu.
Habitual selling uses the imperfective prodavati (prodaje); the perfective proda marks a single completed sale.

Common mistakes

Using the prefixed perfective for an ongoing or habitual action
Sada prepišem domaći.
Sada prepisujem domaći.
An action happening 'now' must be imperfective; the secondary imperfective prepisivati supplies the present-time meaning.
Forgetting the suffix and reusing the perfective for repetition
Svaki dan kupim hleb u pekari.
Svaki dan kupujem hleb u pekari.
Habit takes the imperfective kupovati (kupujem); the perfective kupim marks one purchase, not a daily routine.

B1Aspect

Suffix-Based Pairs (kupiti/kupovati, baciti/bacati)

Vidski parovi po sufiksu

Not all aspect pairs differ by a prefix. Many pairs share the same root and differ only in their suffix. In these pairs, the shorter or -i- verb is usually the perfective, and the longer one with -ova-/-a-/-ava- is the imperfective. For example: kupiti (perfective, to buy once) and kupovati (imperfective, to buy regularly); baciti (to throw once) and bacati (to be throwing, to throw repeatedly); sresti (to meet once) and sretati (to keep meeting); rešiti (to solve) and rešavati (to be solving). These suffix pairs are very common, so it helps to learn both members together as a unit, the same way you learn prefixed pairs.

Key rule

Some aspect pairs differ only in suffix: the -iti/-nuti verb is usually perfective, the -ati/-avati/-ovati verb imperfective (kupiti/kupovati, baciti/bacati) — learn both together.

Examples

Svake nedelje kupujem voće na pijaci.
Svake nedelje kupim voće na pijaci.
Habit needs the imperfective kupovati (kupujem); the perfective kupiti marks one single purchase.
Juče sam kupio nov telefon.
Juče sam kupovao nov telefon.
A single completed purchase takes the perfective kupiti (kupio); kupovati would mean repeated buying.
Deca stalno bacaju loptu preko ograde.
Deca stalno bace loptu preko ograde.
Repeated throwing uses the imperfective bacati (bacaju); the perfective baciti is one throw.

Common mistakes

Using the perfective for a habit
Svaki dan kupim novine.
Svaki dan kupujem novine.
Daily habit needs the imperfective kupovati (kupujem); the perfective kupim marks one purchase.
Using the imperfective for one completed event
Sinoć sam rešavao problem i otišao na spavanje.
Sinoć sam rešio problem i otišao na spavanje.
A finished single result paired with another perfective needs rešiti (rešio); rešavati describes an unfinished process.

B1Aspect

Biaspectual Verbs (telefonirati, čuti, videti)

Dvovidski glagoli

A few Serbian verbs are both perfective and imperfective at the same time. They have only one form, and the context tells you whether the action is completed or ongoing. These are called biaspectual verbs (dvovidski glagoli). Many of them are borrowed verbs ending in -irati, like telefonirati (to phone), organizovati (to organise), informisati (to inform). A handful of native verbs are also biaspectual, especially the perception verbs videti (to see) and čuti (to hear), and the everyday ručati (to have lunch), večerati (to have dinner). With these verbs you cannot rely on the verb form to show aspect — you read it from time words, the situation, and the other verbs around it.

Key rule

Biaspectual verbs (many -irati borrowings, plus videti, čuti, ručati, večerati) have ONE form for both aspects; context — not the verb form — tells you whether the action is completed or ongoing.

Examples

Odjednom sam video grešku u tekstu.
Odjednom sam ugledao grešku, pa video dalje.
videti is biaspectual; here 'odjednom' makes it perfective ('noticed'). No special perfective form is needed.
Slabo vidim na levo oko.
Slabo viđem na levo oko.
videti also serves as imperfective for an ongoing ability; the present is vidim, not the invented viđem.
Juče sam telefonirao bratu.
Juče sam telefonirovao bratu.
telefonirati is biaspectual; one form covers both aspects. The form is telefonirao, not telefonirovao.

Common mistakes

Inventing a separate perfective for a borrowed verb
Sutra ću da istelefoniram bratu.
Sutra ću da telefoniram bratu.
telefonirati is biaspectual and needs no prefix to be perfective; the future already fixes the completed reading.
Inventing a present form for videti
Slabo viđem bez naočara.
Slabo vidim bez naočara.
videti is biaspectual; its present is vidim — there is no separate imperfective viđem.

B1Aspect

Aspect with Phase Verbs (početi / prestati + impf)

Vid uz fazne glagole

Phase verbs describe the beginning, continuation or end of an action: početi (to begin), nastaviti (to continue), prestati (to stop). In Serbian these verbs always take an IMPERFECTIVE complement, never a perfective one. You say počeo je da čita (he began to read), not the perfective. This makes sense: you can begin or stop an ongoing process, but you cannot begin a single completed event. So after početi, nastaviti and prestati, always use the imperfective verb in the da-clause (or as an infinitive). This is one of the most reliable aspect rules in the language and a frequent source of learner mistakes.

Key rule

Phase verbs (početi, nastaviti, prestati) always take an IMPERFECTIVE complement — počeo je da čita, never the perfective — because you can only begin, continue or stop an ongoing action.

Examples

Počeo je da čita knjigu.
Počeo je da pročita knjigu.
After početi the complement must be imperfective (čitati); the perfective pročitati cannot follow a phase verb.
Prestala je da puši pre godinu dana.
Prestala je da popuši pre godinu dana.
prestati takes the imperfective pušiti; the perfective popušiti (smoke one up) is impossible as a complement of 'stop'.
Nastavili su da rade i posle pauze.
Nastavili su da urade i posle pauze.
nastaviti requires the imperfective raditi; the perfective uraditi (do/finish) cannot be continued.

Common mistakes

Perfective complement after početi
Počeo je da pročita pismo.
Počeo je da čita pismo.
Phase verbs take an imperfective complement; only the ongoing čitati can be 'begun'.
Perfective complement after prestati
Prestao sam da popušim.
Prestao sam da pušim.
You stop an ongoing habit (pušiti, imperfective); the perfective popušiti means 'smoke one cigarette up'.

B1Aspect

Aspect in the Imperative (Pročitaj! vs Čitaj!)

Vid u imperativu

When you give a command, the aspect of the verb changes the message. A perfective imperative tells someone to do something once and complete it: Pročitaj ovo! (Read this through!), Otvori prozor! (Open the window!). An imperfective imperative tells someone to do something generally, repeatedly, or to keep doing it: Čitaj svaki dan! (Read every day!), Slušaj pažljivo! (Listen carefully!). There is one more important rule: in negative commands Serbian usually prefers the IMPERFECTIVE. So you say Ne otvaraj prozor! (Don't open the window) with the imperfective, not the perfective. Choosing the right aspect makes your command sound natural.

Key rule

Perfective imperative = do it once and finish (Pročitaj!); imperfective imperative = do it generally/keep doing it (Čitaj!); negative commands normally use the imperfective (Ne otvaraj!).

Examples

Pročitaj ovaj članak do kraja!
Čitaj ovaj članak do kraja jednom!
A single command to finish reading this one article takes the perfective pročitati; the imperfective čitati would mean 'read (generally)'.
Čitaj svaki dan bar pola sata!
Pročitaj svaki dan bar pola sata!
A repeated, habitual command needs the imperfective čitati; the perfective pročitati cannot mark a daily habit.
Otvori prozor, molim te.
Otvaraj prozor, molim te.
A single request to open the window once is perfective otvoriti; the imperfective otvarati would mean 'keep opening it'.

Common mistakes

Imperfective for a single completed command
Pišite svoje ime ovde, molim.
Napišite svoje ime ovde, molim.
Filling in your name once is a single completed act → perfective napisati; pisati implies ongoing writing.
Perfective for a habit command
Pročitaj malo svaki dan.
Čitaj malo svaki dan.
A daily habit needs the imperfective čitati; the perfective marks one completed reading.

B1Aspect

Aspect & the Aorist (mostly perfective)

Vid i aorist

The aorist is a past tense that reports a single, completed action, often in lively narration or speech. Because it names one finished event, the aorist is built overwhelmingly from PERFECTIVE verbs: dođe (he came), reče (he said), pade (it fell), uđe (he entered). An imperfective aorist does exist (radih, govorah) but it is rare and mostly literary. In everyday Serbian — and the aorist is more alive in colloquial Serbian than people often think — you will hear it almost always with perfective verbs to make a story vivid: Otvori vrata i uđe. So when you meet or form an aorist, expect a perfective verb, and use the perfekat for ongoing or repeated past actions instead.

Key rule

The aorist reports one completed event, so it is formed overwhelmingly from PERFECTIVE verbs (dođe, reče, pade); the imperfective aorist is rare and literary — use the perfekat for ongoing past actions.

Examples

Otvori vrata, uđe i sede za sto.
Otvaraše vrata, ulažaše i sedaše za sto.
Lively narration of single completed acts uses the perfective aorist (otvori, uđe, sede); imperfective aorist forms are archaic and wrong in normal speech.
Reče mi da dolazi sutra.
Govoraše mi da dolazi sutra.
A single completed 'said' is the perfective aorist reče; govoraše (imperfective aorist) is literary and unidiomatic here.
Pade kiša i svi pobegoše u kuću.
Padaše kiša i svi bežaše u kuću.
Two single completed events take the perfective aorist (pade, pobegoše); the imperfective aorist (padaše, bežaše) is not normal modern usage.

Common mistakes

Forming an aorist from an imperfective for a single event
On govoraše jednu rečenicu i ode.
On reče jednu rečenicu i ode.
A single completed 'said' needs the perfective aorist reče; the imperfective aorist govoraše is archaic and means durative speaking.
Using the aorist for a repeated/ongoing past action
Svako jutro dođe na posao u osam.
Svako jutro je dolazio na posao u osam.
Repeated habitual past is durative → use the imperfective perfekat (dolazio je); the perfective aorist marks a single arrival.

B1Aspect

Aspect & Motion-Verb Prefixes (ići→doći→otići)

Vid i prefiksi glagola kretanja

The basic motion verb ići (to go) is imperfective: it just means moving on foot in general. When you add a prefix, you get a PERFECTIVE verb that names one completed movement in a particular direction: doći (to arrive/come), otići (to leave/go away), ući (to go in), izaći (to go out), preći (to cross), proći (to pass by), sići (to go down), poći (to set off). Each prefix gives a direction and makes the verb perfective. To re-imperfectivise these — to talk about repeated or ongoing motion — Serbian uses partner forms like dolaziti (to be coming), odlaziti (to be leaving), ulaziti, izlaziti. So you have a neat system: ići (impf., general) → prefixed perfective (one trip) → -laziti imperfective (repeated trip).

Key rule

Prefixes turn imperfective ići into PERFECTIVE directional verbs (doći, otići, ući, izaći); to express repeated/ongoing motion, use the -laziti imperfectives (dolaziti, odlaziti).

Examples

Došao sam kući u osam sati.
Dolazio sam kući u osam sati jednom.
A single completed arrival takes the perfective doći (došao); the imperfective dolaziti marks repeated/ongoing coming.
Svaki dan dolazim na posao vozom.
Svaki dan dođem na posao vozom.
A daily habit needs the imperfective dolaziti (dolazim); the perfective doći marks a single arrival.
Otišao je iz grada prošle nedelje.
Odlazio je iz grada prošle nedelje jednom.
A single completed departure is the perfective otići (otišao); odlaziti would mean repeated leaving.

Common mistakes

Perfective prefixed verb for a habit
Svaki dan dođem na fakultet.
Svaki dan dolazim na fakultet.
A daily routine needs the imperfective dolaziti; the perfective doći marks one single arrival.
Imperfective -laziti for one completed trip
Juče sam dolazio kod tebe i ostao sat.
Juče sam došao kod tebe i ostao sat.
A single completed visit takes the perfective doći (došao); dolaziti implies repeated or ongoing coming.

B1Aspect

Aspect × Tense/Mood Compatibility Overview

Vid i vremena — sažet pregled

This tag pulls together everything about which aspect works in which tense and mood. The big rule is: a perfective verb has NO true present-time meaning. Its present form only appears in da-clauses and the future (kad napišem, da napišem), never to describe what is happening now. The present tense for 'now' is always imperfective (pišem = I am writing). In the past and the future, BOTH aspects work, but with different meanings: imperfective = ongoing/repeated, perfective = single completed. The aorist is almost always perfective; phase verbs always take imperfective complements; the imperfective is preferred in negative commands. Knowing this map helps you choose the right form every time.

Key rule

Perfective verbs have no true present-time meaning (their present points to the future/da-clause); 'now' is always imperfective, while past and future allow BOTH aspects with a single-vs-ongoing contrast.

Examples

Sada pišem domaći zadatak.
Sada napišem domaći zadatak.
Present-time 'now' must be imperfective (pišem); the perfective napišem has no present-time meaning.
Kad napišem pismo, poslaću ga.
Kad pišem pismo, poslaću ga jednom.
The perfective present (napišem) is correct in a kad-clause about the future; here it means 'once I finish writing'.
Juče sam pisao ceo dan.
Juče sam napisao ceo dan.
Durative past ('all day') takes the imperfective perfekat (pisao); the perfective napisao marks a single completed result, incompatible with 'ceo dan'.

Common mistakes

Perfective present for an action happening now
Sada pročitam knjigu.
Sada čitam knjigu.
'Now' requires the imperfective; the perfective present has no present-time meaning and points to the future or a da-clause.
Perfective with a durative time span in the past
Učio... napisao sam ceo dan.
Pisao sam ceo dan.
'Ceo dan' is durative → imperfective perfekat (pisao); the perfective marks a single bounded result.

B1Cases

Genitive vs Accusative Object

Genitiv i akuzativ u objektu

In Serbian the direct object normally goes in the accusative: Čitam knjigu (I am reading a book). But two situations pull the object into the genitive. First, after a negated verb the so-called Slavic genitive often replaces the accusative, especially for indefinite or partial quantities: Nemam vremena (I have no time), Ne pijem kafu / Ne pijem kafe. Second, the partitive genitive marks a part of something rather than the whole: Daj mi hleba (Give me some bread) vs Daj mi hleb (Give me the bread). With concrete, definite objects the accusative survives even under negation. Learning when to switch to the genitive is one of the biggest steps from A2 case knowledge to confident B1 usage.

Key rule

Use the accusative for a definite, whole direct object; switch to the genitive for negated possession (nemam novca), for partial quantities (daj mi hleba), and for non-specific objects under negation.

Examples

Nemam vremena za to.
Nemam vreme za to.
After negated imati the object is the Slavic genitive: vremena, not the accusative vreme.
Nema više hleba u kuhinji.
Nema više hleb u kuhinji.
The existential negator nema governs the genitive: hleba, not the nominative/accusative hleb.
Daj mi malo vode, molim te.
Daj mi malo vodu, molim te.
The partitive 'some water' is genitive after the quantity word malo: vode, not the accusative vodu.

Common mistakes

Accusative kept after negated imati / nema
Nemam novac.
Nemam novca.
Nemati and nema require the genitive of the object; the accusative novac is a typical L1 carry-over.
Partitive expressed with the accusative
Sipaj mi vodu.
Sipaj mi vode.
For an unspecified portion ('some water') use the partitive genitive vode; the accusative vodu names the whole, definite thing.

B1Cases

Instrumental: Means (no preposition) vs Company (sa)

Instrumental — sredstvo i društvo

The Serbian instrumental does two main jobs, and the difference is whether you use the preposition sa. For a tool, vehicle, or means, the noun stands in the bare instrumental with NO preposition: pišem olovkom (I write with a pen), putujem vozom (I travel by train), idem autom (I go by car). For company, the person you are with, you add sa (or s): putujem sa bratom (I travel with my brother), pijem kafu sa Anom. A very common learner mistake is to add sa to the means, saying *pišem sa olovkom. Remember: instrument = no preposition, company = sa.

Key rule

Means and instruments take the bare instrumental with NO preposition (pišem olovkom, idem vozom); company/accompaniment takes sa + instrumental (idem sa bratom).

Examples

Pišem pismo olovkom.
Pišem pismo sa olovkom.
A pen is the instrument, so the instrumental is used WITHOUT sa: olovkom.
Putujem u Beograd vozom.
Putujem u Beograd sa vozom.
A train is the means of travel — bare instrumental, no sa.
Idem na more sa sestrom.
Idem na more sestrom.
A sister is company, so sa is required: sa sestrom.

Common mistakes

Adding sa to a means/instrument
Putujem sa autobusom.
Putujem autobusom.
A vehicle is the means of travel and takes the bare instrumental; sa would imply the bus is a companion.
Omitting sa with a human companion
Idem u školu bratom.
Idem u školu sa bratom.
Accompaniment by a person requires the preposition sa.

B1Cases

Recipient: Dative vs za + Accusative

Primalac — dativ ili za + akuzativ

When something is given or done for someone, Serbian chooses between two patterns. The dative marks the true recipient — the person who actually receives the thing: Dajem knjigu sestri (I give the book to my sister), Pišem prijatelju (I write to a friend). The construction za + accusative marks a beneficiary — the person something is meant or intended for, without necessarily handing it over: Kupujem poklon za sestru (I buy a present for my sister), Ovo je za tebe (This is for you). With verbs of giving, sending, and telling, use the dative. When you stress that something is intended/destined for someone, use za + accusative. Both can sometimes appear, but the meaning shifts.

Key rule

Use the dative for the true recipient of a transfer (dajem sestri); use za + accusative for the beneficiary something is intended for (kupujem za sestru).

Examples

Dajem knjigu bratu.
Dajem knjigu za brata.
Brat is the actual recipient of the book, so the dative bratu is required, not za + accusative.
Kupila sam poklon za mamu.
Kupila sam poklon mami.
Both exist, but with za + accusative the focus is that the gift is intended for mama; the plain dative would simply say she received it.
Pišem pismo prijatelju.
Pišem pismo za prijatelja.
Writing 'to' a friend is a transfer of a message, so the dative prijatelju is used.

Common mistakes

za + accusative used for a true recipient
Dao sam loptu za dete.
Dao sam loptu detetu.
With dati the person who receives is the dative recipient: detetu.
Dative used where a beneficiary needs za
Spremila je ručak deci.
Spremila je ručak za decu.
Spremati 'for someone' is benefactive and takes za + accusative.

B1Cases

Locative (place) vs Accusative (motion) — Review

Lokativ i akuzativ — mesto i kretanje

With the prepositions u and na, the case you choose tells the listener whether you are MOVING somewhere or already THERE. For motion toward a destination, use the accusative: Idem u školu (I'm going to school), Stavljam knjigu na sto (I put the book on the table). For static location, use the locative: Sam u školi (I'm at school), Knjiga je na stolu (The book is on the table). The question word also matches: kuda / gde ideš? (motion) takes the accusative, while gde si? (where are you?) takes the locative. The verb is your clue: verbs of movement (ići, putovati, stavljati) pull the accusative; verbs of position and being (biti, stajati, raditi) pull the locative.

Key rule

After u/na, use the accusative for motion toward a goal (idem u školu) and the locative for static location (sam u školi); the verb decides which.

Examples

Idem u školu.
Idem u školi.
Motion toward a goal takes the accusative after u: školu, not the locative školi.
Sada sam u školi.
Sada sam u školu.
Static location after u takes the locative: školi, not the accusative školu.
Stavljam knjigu na sto.
Stavljam knjigu na stolu.
Placing something onto a surface is motion → accusative na sto.

Common mistakes

Locative used with a motion verb
Idem u prodavnici.
Idem u prodavnicu.
Ići expresses motion to a goal, so u takes the accusative: prodavnicu.
Accusative used with a stative verb
Radim u grad.
Radim u gradu.
Raditi describes a static location, so u takes the locative: gradu.

B1Cases

Genitive in Time Expressions

Genitiv u vremenskim izrazima

Serbian often expresses WHEN something happens by putting the time phrase in the genitive — with no preposition. This adverbial genitive answers kada? and usually combines a determiner or adjective with a noun: prošle nedelje (last week), ovog leta (this summer), jednog jutra (one morning), svakog dana (every day), tog dana (that day). The whole phrase, both the modifier and the noun, takes the genitive. You also see it with dates: petog maja (on the fifth of May). This is different from the locative or accusative time patterns: here there is no preposition at all, just the bare genitive marking the point or period in time.

Key rule

Mark a specific or characteristic time with the bare genitive (no preposition), agreeing the modifier and noun: prošle nedelje, ovog leta, svakog dana, petog maja.

Examples

Prošle nedelje sam bio u Beogradu.
Prošla nedelje sam bio u Beogradu.
Both words take the genitive: prošle nedelje; the modifier prošla must also be genitive (prošle).
Ovog leta putujemo na more.
Ovo leto putujemo na more.
The temporal genitive 'this summer' is ovog leta (both words genitive), not the nominative ovo leto.
Jednog jutra probudio sam se rano.
Jedno jutro probudio sam se rano.
'One morning' as a time frame is the genitive jednog jutra, not the nominative jedno jutro.

Common mistakes

Modifier left in the nominative
Prošla godine sam putovao.
Prošle godine sam putovao.
Both the modifier and the noun must be genitive: prošle godine.
Whole phrase kept in the nominative/accusative
Ovo leto idemo na more.
Ovog leta idemo na more.
When meaning 'this summer' as a time frame, the temporal-genitive form is ovog leta with both words in the genitive, not the nominative ovo leto.

B1Cases

Instrumental in Time Expressions

Instrumental u vremenskim izrazima

The instrumental can express time in two ways, again with no preposition. First, recurrent time — actions that happen regularly at a part of the day or on a day of the week: jutrom (in the mornings), večerom (in the evenings), nedeljom (on Sundays), vikendom (at weekends), petkom (on Fridays). Second, duration spread over a long stretch, usually a plural: danima (for days on end), godinama (for years), satima (for hours), nedeljama (for weeks). Both uses stand alone, without a preposition. They are easy to confuse with the temporal genitive: the genitive points to a specific time (prošle nedelje = last week), while the instrumental means 'habitually' (nedeljom = on Sundays) or 'for a long time' (danima = for days).

Key rule

Use the bare instrumental for habitual time (jutrom, nedeljom 'on Sundays') and for long duration in the plural (danima, godinama); reserve the bare genitive for a specific time.

Examples

Nedeljom obično spavam duže.
Nedelje obično spavam duže.
Habitual 'on Sundays' is the instrumental nedeljom; the genitive nedelje would point to a specific week.
Jutrom pijem kafu na terasi.
Jutra pijem kafu na terasi.
'In the mornings' (habit) is the instrumental jutrom, not the genitive jutra.
Čekali smo ga satima.
Čekali smo ga sata.
Long duration 'for hours' is the plural instrumental satima.

Common mistakes

Genitive used for habitual time
Nedelje idem u crkvu.
Nedeljom idem u crkvu.
Recurrent 'on Sundays' is the instrumental nedeljom; the genitive nedelje names a specific week.
Singular instead of plural for duration
Čekam te sat.
Čekam te satima.
'For hours on end' needs the plural instrumental satima; the singular would just be a span of one hour.

B1Cases

Vocative — Consolidation & Palatalisation

Vokativ — utvrđivanje i palatalizacija

The vocative (vokativ) is the case of direct address — calling, greeting, or addressing someone. It is alive and obligatory in Serbian. This tag pulls together its forms and the sound change called palatalization. Masculine nouns usually add -e (Ivane!, prijatelju! takes -u, brate!), but stems ending in k, g, h shift that consonant before -e: vuk → vuče!, Bog → Bože!, drug → druže! (k→č, g→ž, h→š). Feminine -a nouns take -o (sestro!, ženo!) or -e with affectionate names (Marice!). Neuter and plural nouns simply reuse the nominative. After a name or title in address you put a comma: Dobar dan, gospodine!

Key rule

Form the vocative for direct address: masculine -e (with k→č, g→ž, h→š palatalization: vuče, Bože, druže) or -u after soft stems (prijatelju), feminine -o (sestro) or -e for short names (Marice); set it off with a comma.

Examples

Bože, pomozi mi!
Boge, pomozi mi!
Velar palatalization g→ž before -e: Bog → Bože, not *Boge.
Druže, hoćeš li mi pomoći?
Drug, hoćeš li mi pomoći?
Address requires the vocative with g→ž: druže, not the nominative drug.
Prijatelju, dugo se nismo videli.
Prijatelje, dugo se nismo videli.
A soft-stem masculine takes -u in the vocative: prijatelju, not -e.

Common mistakes

No palatalization on a velar stem
Boge, hvala ti.
Bože, hvala ti.
Before the vocative -e, g becomes ž: Bog → Bože.
Nominative used for address
Ivan, dođi ovamo.
Ivane, dođi ovamo.
Direct address requires the vocative form: Ivane.

B1Cases

Genitive with Numbers & Quantity — Review

Genitiv uz brojeve i količinu — utvrđivanje

Numbers and quantity words in Serbian control the case of the noun that follows. The numbers 2, 3, 4 (and compounds ending in them, like 22, 34) take a special counted form — for masculine and neuter it looks like the genitive singular, for feminine like the nominative plural: dva grada, tri sela, četiri žene. From 5 upward (and 11–14, and the …5–…9 endings) the noun goes into the GENITIVE PLURAL: pet gradova, deset žena, sto godina. Quantity words like malo, mnogo, nekoliko, koliko also take the genitive (mnogo ljudi, malo vode). This tag reviews all three together so you can choose the right form for any number.

Key rule

1 agrees like an adjective; 2/3/4 (and compounds in 2–4) take the counted form (masc/neut = gen sg, fem = nom pl); 5+ and 11–14 take the genitive plural; quantity words (mnogo, malo) take the genitive.

Examples

Imam dva brata i tri sestre.
Imam dva braća i tri sestara.
After 2 the counted form is brata (gen sg-like); after 3 the feminine counted form is sestre (nom pl-like), not the genitive plural sestara.
U sobi je pet stolica.
U sobi je pet stolice.
After 5 the noun is the genitive plural: stolica, not the counted-form/nom-pl stolice.
Kupio sam dvanaest jaja.
Kupio sam dvanaest jaje.
11–14 behave like 5+, so the genitive plural jaja is required, not the counted form.

Common mistakes

Nominative plural after 5+
Imam pet knjige.
Imam pet knjiga.
From 5 upward the noun is the genitive plural: knjiga.
11–14 treated like 2–4
Dvanaest godine.
Dvanaest godina.
11–14 pattern with 5+, requiring the genitive plural: godina.

B1Orthography

Consonant Alternations in Inflection (sibilarizacija, palatalizacija)

Glasovne promene u promeni reči

When Serbian words change their endings, the final consonant of the stem often changes too. Two alternations are everywhere. Sibilarization (sibilarizacija) turns k, g, h into c, z, s before the ending -i: ruka becomes ruci (dative/locative), junak becomes junaci (plural). Palatalization (palatalizacija) turns k, g, h into č, ž, š before certain endings, especially -e in the vocative and before some suffixes: Bog becomes Bože, vuk becomes vuče, drug becomes druže. These are not optional spelling quirks; they are obligatory and you must write the changed consonant. Knowing them lets you decline and conjugate predictably instead of guessing.

Key rule

Velars k, g, h become c, z, s before -i (sibilarizacija) and č, ž, š before -e and palatal suffixes (palatalizacija); the change is obligatory and must be written.

Examples

Knjiga je na ruci.
Knjiga je na ruki.
Feminine ruka takes -i in the locative, so k → c by sibilarization: ruci, never ruki.
U ovoj knjizi ima slika.
U ovoj knjigi ima slika.
Knjiga in the locative: g → z before -i, giving knjizi.
Naši junaci su pobedili.
Naši junaki su pobedili.
Masculine plural of junak: k → c before -i, junaci.

Common mistakes

Failing to apply sibilarization in the feminine locative
Sedim u banki.
Sedim u banci.
Feminine nouns in -ka take -i in the locative, and k → c: banka → banci.
Keeping the velar in the masculine plural
Vojnici su bili hrabri vuki.
Vojnici su bili hrabri vuci.
Masculine plural -i triggers sibilarization: vuk → vuci, not vuki.

B1Orthography

Voicing Assimilation (jednačenje suglasnika po zvučnosti)

Jednačenje suglasnika po zvučnosti

When two consonants meet inside a word, Serbian makes them match in voicing, and the spelling shows it. A voiced consonant (b, d, g, z, ž, đ, dž) next to a voiceless one (p, t, k, s, š, ć, č) usually gives way: the first changes to match the second. So the prefix iz- plus -pisati gives ispisati (z → s before p), and težak in the feminine becomes teška (ž → š before k). The reverse also happens: a voiceless consonant becomes voiced before a voiced one, as in svatovi → svadba (t → d before b). The key point for writing is that you spell what the assimilation produces, not the original consonants.

Key rule

Adjacent consonants assimilate in voicing — the first matches the second — and Serbian spells the result (iz + pisati → ispisati, težak → teška).

Examples

Treba da ispišeš ceo tekst.
Treba da izpišeš ceo tekst.
Prefix iz- before voiceless p: z → s, giving ispisati / ispišeš.
Ovaj kofer je pretežak.
Ovaj kofer je predtežak.
Prefix pred- before t loses its d by assimilation/cluster simplification; the standard form is pretežak.
Torba je preteška.
Torba je pretežka.
Feminine of težak: the ž assimilates to voiceless k → teška, here preteška.

Common mistakes

Keeping z in the prefix iz- before a voiceless consonant
Moram da izkopam rupu.
Moram da iskopam rupu.
iz- + k → isk-: z assimilates to voiceless k, so iskopati.
Keeping z in bez- before a voiceless consonant
On radi bezplatno.
On radi besplatno.
bez- + p → besp-: z → s before voiceless p.

B1Orthography

Fleeting a (nepostojano a: otac→oca)

Nepostojano a

Many Serbian words have an a that appears in some forms and disappears in others. This is the fleeting a (nepostojano a). It usually shows up in the nominative singular (and in the genitive plural) but drops out as soon as a vowel ending is added. So pas (dog) becomes psa in the genitive, otac (father) becomes oca, and the adjective dobar becomes dobra in the feminine. In the plural genitive the a often reappears or is inserted to break up a consonant cluster: sestra becomes sestara, devojka becomes devojaka. Knowing where the a comes and goes keeps you from writing impossible clusters or leaving the a in where it does not belong.

Key rule

The fleeting a appears in the nominative singular (and genitive plural) but drops before a vowel ending: pas → psa, otac → oca, dobar → dobra, sestra → sestara.

Examples

Video sam psa u parku.
Video sam pasa u parku.
The accusative/genitive of pas drops the fleeting a: psa, not pasa.
To je auto mog oca.
To je auto mog otaca.
Otac loses the a in oblique cases: oca, ocu, ocem.
Ona je dobra studentkinja.
Ona je dobar studentkinja.
The masculine indefinite dobar becomes dobra in the feminine; the a drops as the vowel ending is added.

Common mistakes

Keeping the a in the oblique case of a masculine noun
Šetam pasa svaki dan.
Šetam psa svaki dan.
The fleeting a drops before the vowel ending: pas → psa.
Keeping the a in the feminine adjective
Ona je dobar žena.
Ona je dobra žena.
The masculine indefinite -ar/-an loses the a in other genders: dobar → dobra.

B1Orthography

l/o Alternation (posao→posla; radio→radila)

Prelaz l u o

Serbian does not like the consonant l at the end of a word or syllable, so historically it changed to o there. You see this in two big places. In nouns and adjectives: posao (job) has the l hidden — add a vowel ending and it comes back as posla, poslu. The masculine adjective ceo (whole) becomes cela, celo. The second place is the masculine past participle (radni glagolski pridev): it ends in -o, but the l returns the moment a feminine, neuter or plural ending is added: radio → radila, radilo, radili; čitao → čitala; voleo → volela. So the -o you hear in the masculine is really an l that surfaces again in the other forms.

Key rule

Syllable-final l becomes o (posao, ceo, radio), and the l reappears before any vowel ending (posla, cela, radila); Ekavian jat participles end in -eo/-ela (video → videla).

Examples

Imam mnogo posla danas.
Imam mnogo posaoa danas.
Posao keeps the o only word-finally; with an ending the l returns: posla.
Pojeo sam ceo kolač.
Pojeo sam cel kolač.
The masculine adjective is ceo, not *cel; the l surfaces only in cela, celo.
Ona je ceo dan radila.
Ona je ceo dan radio.
The feminine l-participle is radila (l returns); radio is masculine.

Common mistakes

Writing the masculine adjective with final l
Pojeo sam cel hleb.
Pojeo sam ceo hleb.
Syllable-final l → o in the masculine: ceo, not *cel.
Keeping o before a vowel ending in a noun
Imam puno posaoa.
Imam puno posla.
Posao has the stem posl-; the l returns before the ending: posla.

B1Vocabulary usage

Word Formation — Basic Derivation (-ar, -ica, -ost)

Tvorba reči — osnovni nastavci

Serbian builds new words from old ones with predictable suffixes, so learning a few endings multiplies your vocabulary. Agent nouns (the person who does something) often take -ar or -telj: a baker is pekar, a teacher is učitelj. To make the feminine, add -ica or -ka: učiteljica, doktorka, profesorka. Abstract nouns naming a quality take -ost: radost (joy), mladost (youth), budućnost (future). There are many more (-stvo for collectives like društvo, -onica for places like radionica). When you meet an unknown word, breaking it into root plus suffix usually reveals its meaning and its grammatical gender.

Key rule

Productive suffixes derive new words and fix their gender: -ar/-telj/-ač make (mostly masculine) agent nouns, -ica/-ka their feminines, and -ost/-ina abstract feminine quality nouns.

Examples

Moj komšija je pekar.
Moj komšija je pekač.
The agent noun from the baking trade is pekar (-ar suffix), not *pekač.
Naša učiteljica je vrlo strpljiva.
Naša učitelj je vrlo strpljiva.
The feminine of učitelj is učiteljica (-ica); učitelj is masculine and would not take strpljiva.
Ona je odlična doktorka.
Ona je odlična doktor.
The feminine professional uses -ka: doktorka agrees with odlična.

Common mistakes

Wrong agent suffix
On je dobar pekač hleba.
On je dobar pekar.
The trade noun uses -ar: pekar, not *pekač.
Using the masculine title for a woman
Ona je naša profesor.
Ona je naša profesorka.
Serbian forms a feminine professional with -ka: profesorka.

B1Orthography

Comma Rules — Basics (vocative, da/jer/koji clauses, lists)

Zapeta — osnovna pravila

Serbian uses the comma (zapeta) in fairly predictable places. Always put a comma after a vocative or to set it off: Ana, dođi! and Dođi, Ana! Use commas to separate items in a list: kupila sam hleb, mleko i sir (no comma before i in a simple list). Put a comma in front of many subordinate clauses, especially those introduced by jer, iako, ali, and before a non-restrictive koji-clause. A very useful rule is the inverted-clause rule: when the subordinate clause comes FIRST, you separate it with a comma (Kad dođem, javiću se), but when the main clause comes first you often do not (Javiću se kad dođem). Getting commas right makes your writing read as natural Serbian.

Key rule

Set off the vocative with commas, separate list items (no comma before the final i), put a comma before jer/ali and before a fronted subordinate clause, and enclose non-restrictive koji-clauses in commas.

Examples

Ana, dođi da mi pomogneš.
Ana dođi da mi pomogneš.
A vocative in direct address is always set off by a comma: Ana, ...
Kupila sam hleb, mleko i sir.
Kupila sam hleb, mleko, i sir.
In a simple list Serbian does not put a comma before the final i.
Ostajem kod kuće, jer pada kiša.
Ostajem kod kuće jer pada kiša?
A causal jer-clause is normally preceded by a comma (and the sentence is a statement, not a question).

Common mistakes

Omitting the comma after a vocative
Marko gde si bio?
Marko, gde si bio?
A vocative in address is always separated by a comma: Marko, ...
Adding a comma before the final i in a list
Imam knjige, sveske, i olovke.
Imam knjige, sveske i olovke.
Serbian does not use a comma before the closing i/ili in a simple enumeration.

B1Register

Ekavian vs Ijekavian — Variation (Recognition)

Ekavica i ijekavica — prepoznavanje

Standard Serbian has two officially equal pronunciations of one old sound (jat). In the Ekavian variant — used in Serbia, especially in Belgrade — jat is e: dete, mleko, lepo, vreme, reka. In the Ijekavian variant — used by Serbs in Bosnia, in Montenegro, and shared with Croatian and Bosnian — the same words have ije or je: dijete, mlijeko, lijepo, vrijeme, rijeka. Both are correct standard Serbian; they are not better or worse, just regional. This app teaches Ekavian, so you should produce e-forms. Your goal with Ijekavian is recognition: when you read or hear dijete or lijepo, you understand it is the Ijekavian form of dete and lepo, not a mistake.

Key rule

Ekavian renders jat as e (dete, mleko, lepo); Ijekavian renders it as ije/je (dijete, mlijeko, lijepo); both are standard Serbian — produce Ekavian, recognize Ijekavian.

Examples

Dete pije mleko.
Dijete pije mlijeko.
Ekavian (the variant we write) uses e: dete, mleko. The Ijekavian dijete/mlijeko is correct Serbian too, but belongs to the other variant.
Danas je lepo vreme.
Danas je lijepo vrijeme.
In Ekavian, jat is e: lepo, vreme. Lijepo/vrijeme is the Ijekavian form.
Reka je puna snega zimi.
Rijeka je puna snijega zimi.
Ekavian reka, sneg; Ijekavian would say rijeka, snijeg.

Common mistakes

Mixing Ijekavian forms into an Ekavian text
Dete voli mlijeko i lepo vreme.
Dete voli mleko i lepo vreme.
Within Ekavian writing keep e throughout; mlijeko is the Ijekavian form and must not be mixed in.
Using ije/je where Ekavian requires e
Ovo mjesto je vrlo lijepo.
Ovo mesto je vrlo lepo.
Ekavian jat = e: mesto, lepo, not mjesto, lijepo.

B1Register

Latin vs Cyrillic — Usage & Register

Latinica i ćirilica — upotreba

Serbian is written in two alphabets, and every educated speaker can read both. Cyrillic (ćirilica) is the official, traditional script — used by the state, in many institutions, in literature, and on official documents. The Latin alphabet (latinica) is just as widely used in everyday life: in business, advertising, online, in texting, and in much of the press. The two scripts map one-to-one, letter for letter, so the SAME word can be written either way with no change in meaning or pronunciation. This app teaches the Latin alphabet, but you should be able to recognize that a Cyrillic sign and its Latin twin say the same thing. Knowing both is a normal part of Serbian literacy.

Key rule

Serbian uses two equal, 1:1-interchangeable scripts: Cyrillic (official, traditional, state/literary) and Latin (everyday, digital, commercial); both are standard and you should at least recognize both.

Examples

Srpski jezik se piše i ćirilicom i latinicom.
Srpski jezik se piše samo latinicom.
Serbian uses BOTH scripts; saying it is written only in Latin is factually wrong.
Ćirilica je službeno pismo, a latinica se često koristi u svakodnevnom životu.
Latinica je službeno pismo, a ćirilica se ne koristi.
Cyrillic is the official script; Latin is widely used too, but the roles in the incorrect version are reversed and false.
Ista reč može da se napiše na oba pisma bez razlike u značenju.
Ako promeniš pismo, menja se i značenje reči.
The scripts are 1:1; changing script does not change meaning or pronunciation.

Common mistakes

Claiming Serbian uses only one script
Srpski se piše samo latinicom.
Srpski se piše i ćirilicom i latinicom.
Serbian is bi-scriptal; both alphabets are standard and in active use.
Reversing the official/everyday roles
Latinica je jedino zvanično pismo.
Ćirilica je zvanično pismo, a latinica se široko koristi u svakodnevnom životu.
Cyrillic is the official script; Latin is the everyday/digital default, not the sole official one.

B1Clitics

Full Clitic Order (li / AUX / DAT / ACC / se / je)

Potpun red enklitika

When several unstressed little words (clitics) appear together, they line up in a fixed order in the second position of the clause. The template is: question li — auxiliary (sam, si, je, smo, ste, su; ću, ćeš…) — dative pronoun (mi, ti, mu, joj, nam, vam, im) — accusative or genitive pronoun (me, te, ga, je, ih) — the reflexive se — and finally je. You cannot rearrange them. So 'Da li mu ga je dao?' (Did he give it to him?) keeps the order li, je is the last auxiliary slot, mu (dative), ga (accusative). Learning this template lets you build long clitic clusters that sound completely natural.

Key rule

Clitics cluster in second position in the fixed order li – AUX – DAT – ACC/GEN – se – je, and je is always last.

Examples

Ana mi ga je dala.
Ana je mi ga dala.
The dative mi and accusative ga come before the auxiliary je; je is pushed to the very end of the cluster.
Da li mu ga je vratio?
Da li ga mu je vratio?
Dative mu must precede accusative ga inside the cluster.
Juče sam ti ih poslao.
Juče ti ih sam poslao.
The auxiliary sam comes first, then dative ti, then accusative ih.

Common mistakes

Placing the auxiliary je before the object clitics
Ana je mi ga dala.
Ana mi ga je dala.
The third-person singular auxiliary je is always the last element of the clitic cluster, after dative and accusative pronouns.
Putting accusative before dative
Da li ga mu je vratio?
Da li mu ga je vratio?
Within the cluster the dative pronoun always precedes the accusative/genitive pronoun.

B1Clitics

je-Drop with se (nasmejao se, not se je)

Izostavljanje je uz se

In the perfekat of a reflexive verb, the third-person singular auxiliary je would normally stand at the end of the clitic cluster. But when it meets the reflexive se, the je is dropped. So 'he laughed' is 'On se nasmejao', NOT 'On se nasmejao je'. This drop happens only with je (3rd person singular). All the other auxiliaries stay: 'Ja sam se nasmejao', 'Mi smo se nasmejali', 'Oni su se nasmejali'. The rule is purely about the clash of je + se in the third person singular, where one of them — je — simply disappears.

Key rule

In the 3rd-person-singular perfekat of a reflexive verb, the auxiliary je is dropped before se: 'On se vratio', never 'On se vratio je'.

Examples

On se nasmejao.
On se nasmejao je.
In the 3rd singular, the auxiliary je is deleted when it meets the reflexive se.
Ona se vratila kući.
Ona se vratila je kući.
Reflexive se in the 3rd singular causes the je to drop.
Dete se igralo u parku.
Dete se igralo je u parku.
Neuter 3rd singular also drops je before se.

Common mistakes

Restoring je after se in the 3rd singular
On se vratio je.
On se vratio.
Standard Serbian deletes the 3rd-singular auxiliary je when it meets the reflexive se.
Dropping the wrong auxiliary
Ja se javio prijatelju.
Ja sam se javio prijatelju.
Only je drops; the 1st-person auxiliary sam is obligatory.

B1Clitics

The Interrogative li — Separate from the Cluster

Upitno li — poseban položaj

The little question word li turns a statement into a yes/no question. It clings to the focused word — usually the verb — and stands at the very front of the clitic group: 'Radiš li?' (Do you work?), 'Jesi li gotov?' (Are you ready?), 'Hoćeš li doći?' (Will you come?). It is different from 'da li', which puts the question frame at the start of the whole sentence: 'Da li radiš?'. Both are standard Serbian and mean the same thing. With li, the word you want to question comes first and li attaches right after it; you can even question a non-verb: 'Sutra li dolaziš?' (Is it tomorrow that you come?).

Key rule

li heads the clitic group, attaching right after the first focused word (usually the verb): 'Radiš li?'; it is the standard alternative to 'Da li radiš?'.

Examples

Radiš li sutra?
Li radiš sutra?
li can never start a clause; it attaches after the focused word, here the verb Radiš.
Jesi li gotov?
Da li si gotov?
For the verb biti the long form jesi hosts li; the clitic si is used with da li instead, not with bare li.
Hoćeš li doći večeras?
Hoćeš da li doći večeras?
li attaches directly to the verb; you do not combine li with da li in one question.

Common mistakes

Starting a question with li
Li dolaziš sutra?
Dolaziš li sutra?
li is a clitic and can never be the first word; it attaches after the focused host.
Placing li after an object clitic
Vidiš ga li?
Vidiš li ga?
li heads the clitic group, so it precedes the object clitic ga.

B1Pronouns

koji — Full Declension & Relative Use

Zamenica koji — potpuna promena

koji (which/who/that) is the main relative pronoun. It takes the long pronominal endings like an adjective: koji, kojeg/koga, kome/kojem, koji/koga, kojim, kojem; feminine koja, koje, kojoj, koju, kojom; neuter koje. The trick is that koji agrees in gender and number with the noun it points back to (its antecedent), but its CASE comes from its job inside its own clause. So in 'čovek koga vidim' (the man whom I see), koga is masculine (matching čovek) and accusative (the object of vidim). In 'žena kojoj pišem' (the woman to whom I write), kojoj is feminine and dative. Always ask two questions: what gender/number is the antecedent, and what role does koji play in its own clause.

Key rule

koji agrees in gender and number with its antecedent, but takes its case from its role inside the relative clause.

Examples

Čovek koji radi je moj otac.
Čovek koga radi je moj otac.
koji is the subject of the relative clause, so it is nominative; koga would be accusative.
Knjiga koju čitam je odlična.
Knjiga koja čitam je odlična.
Inside the clause koju is the object of čitam, so it must be accusative, not nominative koja.
Prijatelj kome pišem živi u Nišu.
Prijatelj koga pišem živi u Nišu.
pisati takes a dative recipient, so the relative pronoun is dative kome, not accusative koga.

Common mistakes

Using the antecedent's case instead of the clause role
Knjiga koja čitam je dobra.
Knjiga koju čitam je dobra.
koji takes its case from its function in the relative clause; here it is the object, hence accusative koju.
Confusing dative and accusative of koji
Prijatelj koga pišem.
Prijatelj kome pišem.
pisati governs the dative for the recipient, so the relative pronoun is kome.

B1Pronouns

Relative Words (koji, što, čiji, gde, kada)

Odnosne reči — koji, što, čiji

Besides koji, Serbian has several other relative words. što means 'which/that' and refers back to a whole idea or works as a colloquial all-purpose relative — it does NOT mean 'what?' here (that is šta). čiji means 'whose' and agrees with the thing possessed: 'čovek čija kuća gori' (the man whose house is burning). For places and times you can use gde (where), kuda (which way), and kad(a) (when): 'mesto gde sam rođen', 'dan kad smo se upoznali'. These give you smoother, more varied sentences than repeating koji every time. Choose koji for a specific noun, čiji for possession, gde for location, kada for time, and što to refer to an entire clause.

Key rule

Use koji for a noun, čiji (agreeing with the possessed) for 'whose', gde/kuda/kada for place and time, and što to refer back to a whole clause — never šta as a relative.

Examples

Zakasnio je, što me je naljutilo.
Zakasnio je, šta me je naljutilo.
To refer back to the whole clause use relative što; šta is the interrogative 'what?', not a relative.
Čovek čija kuća gori zove pomoć.
Čovek koji kuća gori zove pomoć.
Possession is expressed by čiji, agreeing with kuća; koji cannot mark 'whose'.
Žena čiji sin studira je ponosna.
Žena čija sin studira je ponosna.
čiji agrees with the possessed noun sin (masculine), so čiji, not feminine čija.

Common mistakes

Using šta instead of relative što
Pao je ispit, šta ga je rastužilo.
Pao je ispit, što ga je rastužilo.
As a relative referring to a whole clause the word is što; šta is only the question 'what?'.
Making čiji agree with the possessor
Žena čija muž radi ovde.
Žena čiji muž radi ovde.
čiji agrees with the possessed noun (muž, masculine), not with the possessor (žena).

B1Pronouns

Indefinite Pronouns (neko, nešto, neki, nekakav)

Neodređene zamenice

Indefinite pronouns point to someone or something unspecified. Most are built by adding the prefix ne- to a question word: ko → neko (someone), šta → nešto (something), koji → neki (some/a certain), čiji → nečiji (someone's), kakav → nekakav (some kind of). neko and nešto decline like ko and šta (nekoga, nečega, nečemu). neki and nekakav decline like adjectives and agree with their noun (neki čovek, neku knjigu, nekim ljudima). There is also the 'whatever' series with god: ko god (whoever), šta god (whatever), gde god (wherever). Use these when you don't know or don't want to specify exactly who or what.

Key rule

Form indefinites with ne- + question word; neko/nešto decline like ko/šta, while neki/nekakav agree like adjectives — and never use them under negation (use ni-words there).

Examples

Neko kuca na vrata.
Neki kuca na vrata.
For an unspecified person use the substantival neko; neki is the adjectival 'some' and needs a noun.
Tražim nešto za jelo.
Tražim neki za jelo.
For an unspecified thing use nešto; neki must accompany a noun.
Došao je neki čovek.
Došao je nešto čovek.
With the noun čovek the adjectival neki agrees; nešto cannot modify a noun.

Common mistakes

Using neki for a bare person/thing
Neki kuca na vrata.
Neko kuca na vrata.
For an unspecified person without a noun use the substantival neko; neki modifies a noun.
Not declining neko/nešto
Video sam neko.
Video sam nekoga.
neko declines like ko; the animate accusative object is nekoga.

B1Pronouns

Negative Pronouns (niko, ništa, nijedan) + Concord

Odrične zamenice — niko, ništa

Negative pronouns are built with the prefix ni-: niko (no one), ništa (nothing), nijedan (not a single one), ničiji (no one's), nikakav (no kind of), plus the adverbs nigde (nowhere), nikad (never), nikako (no way). The big rule is concord: a ni-word ALWAYS needs ne on the verb too. So 'Niko ne zna' (No one knows), 'Ništa ne vidim' (I see nothing). This double negation is required, not wrong. You can stack several ni-words and still keep just one ne: 'Niko nikad ništa ne kaže'. With prepositions, ni splits off and goes in front of the preposition: ni od koga, ni sa kim, ni o čemu, ni za šta.

Key rule

Every ni-word requires ne on the verb (obligatory negative concord), and with a preposition the ni splits off in front of it: 'ni sa kim ne razgovaram'.

Examples

Niko ne zna odgovor.
Niko zna odgovor.
A ni-word obligatorily requires ne on the verb; omitting ne is ungrammatical.
Ništa ne razumem.
Ništa razumem.
ništa needs the negated verb ne razumem; the double negation is required.
Niko nikad ništa ne kaže.
Niko nikad ništa kaže.
Several ni-words still take exactly one ne on the verb; they reinforce the negation.

Common mistakes

Dropping ne with a ni-word
Niko zna istinu.
Niko ne zna istinu.
Serbian requires negative concord: a ni-word must co-occur with ne on the verb.
Joining ni to the preposition
Sa nikim ne pričam.
Ni sa kim ne pričam.
With prepositions the ni- separates and is placed before the preposition: ni sa kim.

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B1Pronouns

Possessive Dative (Boli me glava; Majka mu je…)

Posesivni (prisvojni) dativ

Serbian often uses a dative pronoun clitic to show that something belongs to or affects someone, instead of a possessive pronoun. Compare 'Majka mu je lekarka' (His mother is a doctor) with the heavier 'Njegova majka je lekarka'. The dative mu signals 'his' lightly and naturally. This is especially common with body parts and family: 'Boli me glava' (My head hurts — literally 'the head hurts to me'), 'Operi ruke' / 'Operi mu ruke', 'Slomio mi je olovku' (He broke my pencil). The dative clitic sits in the usual second position. Use it for close, inalienable possession and for being affected by the action; for emphasis or contrast, switch to the full possessive pronoun.

Key rule

Use a dative pronoun clitic (mi, ti, mu, joj…) for inalienable possession and personal involvement — 'Boli me glava', 'Majka mu je lekarka' — rather than a full possessive pronoun.

Examples

Boli me glava.
Boli moja glava.
Body-part possession uses the dative clitic me; the possessive moja sounds unnatural here.
Majka mu je lekarka.
Mu majka je lekarka.
The dative clitic mu stays in second position, after the first word majka; it cannot start the clause.
Slomio mi je olovku.
Slomio je moju olovku.
The affected-possession dative mi is the natural choice; the full possessive moju is heavier and less idiomatic.

Common mistakes

Using a possessive for body parts
Boli moja glava.
Boli me glava.
With body parts Serbian uses the affected dative clitic (me), not a possessive pronoun.
Starting a clause with the dative clitic
Mu majka je lekarka.
Majka mu je lekarka.
The dative clitic mu is a second-position element; a stressed word must precede it.

B1Syntax

Relative Clauses with koji

Odnosne rečenice sa koji

The relative pronoun koji links a clause to a noun, like English who, which or that. The tricky part is that koji takes two pieces of information from two different places: it agrees in gender and number with the noun it refers back to (its antecedent), but it takes its case from the job it does inside its own clause. So in 'the man whom I see', koji is masculine singular (because of 'man') but accusative (because it is the object of 'see'), giving koga. A relative clause is always set off with a comma when it adds extra information. Learning koji well means you can build longer, more natural sentences instead of many short ones.

Key rule

koji takes gender and number from the noun it refers to, but its CASE from its own clause.

Examples

Čovek koji govori je moj profesor.
Čovek koja govori je moj profesor.
The antecedent čovek is masculine, so the relative pronoun is koji, not the feminine koja.
Knjiga koju čitam je odlična.
Knjiga koji čitam je odlična.
koja is the object of čitam, so it is accusative feminine koju, not nominative koji.
To je prijatelj kome sam pisao.
To je prijatelj koji sam pisao.
The verb pisati governs the dative, so the relative pronoun is kome, not nominative koji.

Common mistakes

Using nominative koji for an object
Čovek koji vidim je moj komšija.
Čovek koga vidim je moj komšija.
Here čovek is the object of vidim and is masculine animate, so accusative equals nominative koji — but for animate masculine objects you must switch to koga (čovek koga vidim).
Taking case from the antecedent instead of the clause
Pišem prijatelju kojeg verujem.
Pišem prijatelju kome verujem.
verovati governs the dative, so the relative pronoun is dative kome regardless of the antecedent's case.

B1Syntax

Relative što (for clauses, neuter, colloquial)

Odnosno što

Besides koji, Serbian has the relative što. It has two main jobs. First, it refers back to a WHOLE clause, not a single noun — like English 'which' in 'He was late, which annoyed me'. Here što sums up the entire previous statement. Second, in colloquial speech što is an all-purpose relative that can replace koji ('čovek što radi' instead of 'čovek koji radi'). Note that this relative što is the conjunction 'that/which', completely different from the interrogative 'what?', which in Serbian is šta — never što. When što stands in for a whole clause it is usually preceded by a comma, and a resumptive pronoun (to, ga) may appear inside the clause.

Key rule

što refers to a whole clause (or is a colloquial relative); 'what?' as a question is always šta, never što.

Examples

Položio je ispit, što nas je obradovalo.
Položio je ispit, koji nas je obradovalo.
što refers to the whole event of passing, not to a single noun, so koji is wrong here.
Ono što me muči jeste cena.
Ono šta me muči jeste cena.
After ono the relative is što; šta is only the interrogative 'what?'.
Zaboravio je ključeve, što se često dešava.
Zaboravio je ključeve, što se često dešava njih.
što sums up the clause and needs no resumptive object; adding njih is wrong.

Common mistakes

Using što for the question 'what?'
Što radiš večeras?
Šta radiš večeras?
In standard Serbian the interrogative 'what?' is šta; što for 'what?' is a Croatian feature.
Using koji to refer to a whole clause
Pao je na ispitu, koji ga je rastužilo.
Pao je na ispitu, što ga je rastužilo.
When the relative refers to the entire previous clause, not one noun, use što.

B1Syntax

Reported Speech (Rekao je da…)

Upravni i neupravni govor

Reported (indirect) speech tells what someone said without quoting their exact words. In Serbian you introduce it with da: Rekao je da dolazi ('He said that he is coming'). The most important thing for English speakers is that Serbian does NOT shift the tense back the way English does. English turns 'I am coming' into 'he said he WAS coming', but Serbian keeps the original tense: the present stays present (da dolazi), the future stays future (da će doći). What does change are the pronouns and the point of view: 'I am tired' becomes 'on je rekao da je umoran'. For reported questions, use da li or the question word, and for reported commands use da + present.

Key rule

Introduce reported speech with da and KEEP the original tense — Serbian has no English-style backshift.

Examples

Rekao je da dolazi sutra.
Rekao je da je dolazio sutra.
The original was present ('dolazim'), so it stays present da dolazi; Serbian does not backshift to the past.
Ana kaže da je umorna.
Ana kaže da sam umorna.
The pronoun shifts to Ana's viewpoint: 'ja sam umorna' becomes da je umorna.
Pitao me je da li imam vremena.
Pitao me je da imam vremena.
A reported yes/no question needs da li, not bare da.

Common mistakes

Backshifting the tense like English
Rekao je da je dolazio sutra.
Rekao je da dolazi sutra.
Serbian keeps the original tense; the present 'dolazim' stays da dolazi even after a past reporting verb.
Forgetting to shift the pronoun
Rekao je da sam zauzet.
Rekao je da je zauzet.
His words 'ja sam zauzet' become the reporter's da je zauzet, with a third-person pronoun/verb.

B1Syntax

Real Conditional with ako

Realna pogodbena rečenica — ako

A real (open) conditional talks about something that may genuinely happen: 'If it rains, I'll stay home.' Serbian uses ako for the if-clause. The verb in the ako-clause is usually present or futur II (the budem-form), and the main clause has present, future or an imperative. So Ako pada kiša, ostajem kod kuće and Ako budeš imao vremena, javi mi. Unlike English, Serbian CAN put a future-like verb in the if-clause via futur II (budem + participle), and it never uses 'will' inside ako the way English avoids 'if it will rain'. When the ako-clause comes first, a comma separates it from the main clause.

Key rule

Use ako + present (or futur II budem-form) for open conditions; never put 'will' inside the ako-clause as English does.

Examples

Ako pada kiša, ostajem kod kuće.
Ako će padati kiša, ostajem kod kuće.
Serbian uses the present (or futur II) in the ako-clause, not a plain future with će.
Ako budeš imao vremena, javi mi.
Ako imaćeš vremena, javi mi.
A future condition in the if-clause uses futur II (budeš imao), not the futur I.
Ako učiš, položićeš ispit.
Ako učiš, položiš ispit.
The main clause states a real future result with futur I (položićeš), not a bare perfective present.

Common mistakes

Putting futur I inside the ako-clause
Ako ćeš doći, reci mi.
Ako budeš došao, reci mi.
Serbian does not use plain future after ako; a future condition is expressed with futur II (budeš došao).
Using the infinitive in futur II
Ako budem raditi, neću izaći.
Ako budem radio, neću izaći.
Futur II is budem + radni pridev (radio), not budem + infinitive.

B1Syntax

Unreal Conditional (Da znam, rekao bih)

Irealna pogodbena rečenica — da + potencijal

An unreal conditional describes something that is NOT true or is only imagined: 'If I knew, I would tell you' (but I don't know). Serbian builds it differently from real conditions. The if-clause uses da (not ako) with the present or perfekat, and the main clause uses the kondicional (the bih/bi/bismo + participle form): Da znam, rekao bih ti. For something that could not happen in the past, both parts shift to the past: Da sam znao, rekao bih ti ('Had I known, I would have told you'). The kondicional auxiliary bih is a clitic and sits in second position. This is the structure for wishes, regrets and pure hypotheses.

Key rule

Unreal conditions use da + present/perfekat in the if-clause and the kondicional (bih + participle) in the main clause.

Examples

Da imam vremena, došao bih.
Ako imam vremena, došao bih.
An unreal condition uses da, not ako; ako belongs to real, open conditions.
Da sam znao, rekao bih ti.
Da sam znao, rekao bi ti.
The first-person kondicional auxiliary is bih, not bi; bi is third person.
Da je učila, položila bi ispit.
Da je učila, položila biti ispit.
The kondicional uses bi + radni pridev (položila bi), never the infinitive.

Common mistakes

Using ako instead of da in an unreal condition
Ako bih imao vremena, došao bih.
Da imam vremena, došao bih.
Counterfactual conditions take da + present/perfekat, not ako + kondicional.
Using bi for the first person
Da znam, ja bi ti rekao.
Da znam, ja bih ti rekao.
First person singular of the kondicional is bih; bi is for second/third person.

B1Syntax

Purpose Clauses with da / kako bi

Namerne rečenice — da, kako bi

A purpose clause says WHY you do something — the goal of the action, like English 'in order to' or 'so that'. Serbian has two main ways. The simplest is da + present: Učim da položim ispit ('I study to pass the exam'). The more formal alternative is da bih / kako bih + the participle: Učim da bih položio ispit / kako bih položio. Both mean the same thing. The bih in da bih is the conditional auxiliary and agrees with the subject (da bih, da bi, da bismo). Use da + present in everyday speech; da bih and kako bih sound more careful or written. The verb in a purpose clause is usually perfective, because you aim at a completed result.

Key rule

Express purpose with da + present (everyday) or da bih / kako bih + participle (more formal), usually with a perfective verb.

Examples

Učim da položim ispit.
Učim da polažem ispit.
A purpose aims at a completed result, so the perfective položim, not the imperfective polažem.
Štedim novac da bih kupio kola.
Štedim novac da bi kupio kola.
The subject is first person, so the auxiliary is da bih, not da bi.
Došao sam da te vidim.
Došao sam za da te vidim.
Purpose is expressed with bare da, never with za da.

Common mistakes

Using za da for purpose
Došao sam za da te vidim.
Došao sam da te vidim.
Serbian expresses purpose with bare da; za da does not exist.
Wrong bih-agreement in da bih
Trčim da bi smršao.
Trčim da bih smršao.
The auxiliary must agree with the subject: first person singular is bih, not bi.

B1Syntax

Concessive Clauses (iako, mada, premda, makar)

Dopusne rečenice

A concessive clause says that something happens DESPITE an obstacle — English 'although' or 'even though': 'Although it's raining, I'm going out.' Serbian uses iako, mada and premda for 'although' (all very close in meaning), and makar / makar i for 'even if'. The main clause often has a contrasting word like ipak ('still, nevertheless'): Iako pada kiša, ipak izlazim. A fronted concessive clause is set off by a comma. The difference between them is mostly register: iako and mada are the everyday choices, premda is a bit more formal, and makar adds an 'even if' / 'at least' flavour.

Key rule

Use iako/mada/premda for 'although' and makar (i)/čak i ako for 'even if', often with ipak in the main clause.

Examples

Iako pada kiša, izlazim.
Iako pada kiša, ali izlazim.
After a concessive iako-clause you do not add ali; the contrast is already expressed, optionally reinforced by ipak.
Mada je umoran, ipak radi.
Mada je umoran, ipak radio.
The main clause needs a finite present radi (with subject 'he'), not the bare participle radio.
Premda je bilo kasno, ostali smo.
Premda da je bilo kasno, ostali smo.
premda already introduces the clause; adding da is wrong.

Common mistakes

Adding ali after a concessive clause
Iako je kasno, ali izlazim.
Iako je kasno, izlazim.
iako already signals the concession; pairing it with ali doubles the contrast (a calque of 'although… but').
Adding da after the concessive conjunction
Mada da je bolestan, došao je.
Mada je bolestan, došao je.
iako/mada/premda introduce the clause directly; no da follows them.

B1Syntax

Temporal Clauses — Advanced (pre nego što, čim, otkad)

Vremenske rečenice — proširenje

Beyond simple kad ('when'), Serbian has precise time conjunctions. Pre nego što means 'before': Operi ruke pre nego što jedeš. Nakon što / pošto means 'after'. Čim means 'as soon as': Javiću ti čim stignem. Otkad / otkako means 'since (a point in time)': Otkad je otišao, tužna sam. Dok means 'while/until'. The two big traps for English speakers: (1) after čim and in many future time-clauses Serbian uses the PRESENT, not the future — Čim dođem (not *čim ću doći); (2) aspect matters — a perfective marks a single completed point (pre nego što odeš), an imperfective an ongoing background (dok jedem). A fronted time-clause takes a comma.

Key rule

Use pre nego što / nakon što / čim / otkad with the PRESENT for future reference (not će), and match aspect to a point vs a span.

Examples

Javiću ti čim stignem.
Javiću ti čim ću stići.
After čim, future reference takes the present (stignem), not a plain future with ću.
Operi ruke pre nego što jedeš.
Operi ruke pre nego da jedeš.
The conjunction is pre nego što; the variant with da is non-standard here.
Otkad je otišao, tužna sam.
Otkad da je otišao, tužna sam.
otkad introduces the clause directly; no da follows.

Common mistakes

Future tense after čim / pre nego što / nakon što
Čim ću završiti, zvaću te.
Čim završim, zvaću te.
Future time-clauses in Serbian use the present (or futur II), never a plain future with će.
Omitting ne in 'until' clauses
Ostani ovde dok se vratim.
Ostani ovde dok se ne vratim.
dok meaning 'until' before a future point keeps the structural ne (dok ne); dropping it (dok se vratim) changes or weakens the meaning.

B1Connectors

Correlative Connectors (i… i; ili… ili; ni… ni)

Korelativni veznici

Correlative connectors come in pairs and link two equal items. The three main ones are: i… i ('both… and'): I Ana i Marko dolaze; ili… ili ('either… or'): Ili učiš ili izlaziš; and ni… ni ('neither… nor'). The big rule for ni… ni is that, like all negative words in Serbian, it REQUIRES ne on the verb: Ni Ana ni Marko ne dolaze ('Neither Ana nor Marko is coming'). This double negation is correct and obligatory. With i… i and two singular subjects joined, the verb is usually plural; with ili… ili it often agrees with the nearer subject. The repeated conjunction goes before each item it joins.

Key rule

i… i = both/and, ili… ili = either/or, ni… ni = neither/nor — and ni… ni ALWAYS keeps ne on the verb.

Examples

I Ana i Marko dolaze sutra.
Ana i Marko i dolaze sutra.
The paired i goes before each conjunct: i Ana i Marko, not after them.
Ni on ni ona ne znaju odgovor.
Ni on ni ona znaju odgovor.
ni… ni requires the negative ne on the verb; without it the sentence is ungrammatical.
Ili ćeš učiti ili ćeš pasti.
Ili ćeš učićeš ili ćeš pasti.
The future is marked once: either the fronted aux ćeš with the infinitive (ćeš učiti) or the fused form učićeš — never both at once.

Common mistakes

Dropping ne with ni… ni
Ni on ni ja idemo.
Ni on ni ja ne idemo.
Serbian has negative concord: ni… ni must be accompanied by ne on the verb.
Placing the paired conjunction after the conjuncts
Ana i Marko i dolaze.
I Ana i Marko dolaze.
The repeated i precedes each item it joins: i Ana i Marko.

B1Connectors

Consequence Connectors (zato, dakle, stoga, te)

Zaključni veznici — zato, dakle

Consequence connectors introduce the RESULT of something — English 'so, therefore, thus'. The everyday choice is zato ('that's why, so'): Pada kiša, zato ostajem kod kuće. More formal/written are dakle ('therefore, so'), stoga ('hence, therefore') and te ('and so'). Note the difference between zato (alone = 'therefore') and zato što (= 'because', which introduces a CAUSE, not a result) — they are opposite directions. dakle often signals a logical conclusion ('so, in other words') and is usually set off by a comma. These connect a cause already stated to the consequence that follows.

Key rule

zato/dakle/stoga/te introduce a RESULT ('therefore'); zato WITH što means 'because' (a cause) — don't confuse them.

Examples

Pada kiša, zato ostajem kod kuće.
Pada kiša, zato što ostajem kod kuće.
Here we want the result ('so I'm staying'), so zato alone; zato što would mean 'because', reversing the logic.
Nije učio, dakle pao je na ispitu.
Nije učio dakle pao je na ispitu.
dakle as a conclusion is set off by a comma.
Nije bilo karata, stoga smo otišli kući.
Nije bilo karata, stoga što smo otišli kući.
stoga ('therefore') introduces the result; adding što wrongly turns it into a cause connector.

Common mistakes

Using zato što ('because') for a result
Kasno je, zato što idem kući.
Kasno je, zato idem kući.
zato što = 'because' (cause); for the result 'so/therefore' use zato without što.
Using zato (result) where a cause is meant
Ostajem kod kuće zato pada kiša.
Ostajem kod kuće zato što pada kiša.
To give the reason ('because it's raining') you need zato što, not bare zato.

B1Connectors

Adversative Connectors (ali, nego, već, međutim)

Suprotni veznici — ali, nego, već

Adversative connectors express contrast — English 'but, however'. The general 'but' is ali: Volim kafu, ali ne pijem je uveče. The tricky pair is nego and već, which mean 'but rather' and are used ONLY after a negation, to correct it: Ne pijem čaj, nego kafu ('I don't drink tea, but [rather] coffee'). You cannot use ali in that corrective sense, and you cannot use nego/već after a positive clause. međutim means 'however' and usually stands at the start of a new sentence or clause, set off by a comma: Bilo je hladno. Međutim, izašli smo. So: ali = general but; nego/već = but rather (after a negation); međutim = however.

Key rule

ali = general 'but'; nego/već = 'but rather' ONLY after a negation; međutim = 'however' (clause-initial, comma-set).

Examples

Nije crn, nego smeđ.
Nije crn, ali smeđ.
After a negation, the correction 'but rather' must use nego (or već), not ali.
Volim more, ali ne volim vrućinu.
Volim more, nego ne volim vrućinu.
There is no negation to correct, so the general contrast uses ali, not nego.
Ne idem danas, već sutra.
Ne idem danas, ali sutra.
Correcting a negation requires već (or nego); ali cannot express 'but rather' here.

Common mistakes

Using ali to correct a negation
Nije visok, ali nizak.
Nije visok, nego nizak.
After a negation the corrective 'but rather' must be nego or već, not ali.
Using nego/već without a preceding negation
Lepo je vreme, nego hladno.
Lepo je vreme, ali hladno.
nego/već only follow a negation; a positive clause takes the general ali.

B1Syntax

Word Order & Information Structure — Intro

Red reči i obaveštajna struktura — uvod

Serbian word order is flexible because the cases show who does what — but the order is not random. It carries information. The general tendency is: known/old information (the topic) comes FIRST, and the new/important information comes LAST. So Knjigu sam dao Ani highlights Ani (to whom), while Ani sam dao knjigu highlights knjigu (what). Fronting a word also gives it emphasis. Importantly, the clitics (sam, je, mu, ga, se) still must sit in the SECOND position, right after the first stressed unit, no matter how you reorder the rest. So when you move a phrase to the front, the clitic cluster follows it. This lets you stress different parts of a sentence while keeping the grammar correct.

Key rule

Old info first, new info last; fronting adds emphasis — but the clitics always stay in second position.

Examples

Knjigu sam dao Ani.
Knjigu dao sam Ani.
The clitic sam must be second, right after the fronted Knjigu; it cannot come after the participle.
Ani sam dao knjigu.
Ani dao sam knjigu.
Whatever is fronted, the clitic sam follows it in second position; *dao sam after the verb breaks the rule here.
Juče sam ga video.
Juče ga sam video.
Within the clitic cluster the auxiliary sam precedes the object clitic ga: sam ga, not ga sam.

Common mistakes

Clitic placed after the participle/verb
Knjigu dao sam Ani.
Knjigu sam dao Ani.
The clitic must occupy the second position, right after the fronted first constituent, not after the main verb.
Starting a clause with a clitic
Sam ti rekao istinu.
Rekao sam ti istinu.
Clitics cannot be clause-initial; a stressed word must come first, then the clitic in second position.

B1Verb tenses

Future II (budem + l-participle)

Futur II — građenje i upotreba

Futur II is a special future tense used almost only inside subordinate clauses, especially after 'ako' (if) and 'kad' (when). You build it from the present of 'budem' (budem, budeš, bude, budemo, budete, budu) plus the l-participle, the same -o/-la/-lo form you use in the past tense (radio, radila, došao). It describes a future action seen as completed or as a condition before the main future action happens: 'Ako budem imao vremena, doći ću' (If I have time, I'll come). You almost never use Futur II as a standalone main-clause tense; for ordinary future you use Futur I (radiću). With perfective verbs it is especially common, because the l-participle naturally signals a completed event in the future.

Key rule

Futur II = present of 'budem' + l-participle, and it lives in subordinate 'ako'/'kad' clauses, not in the main clause.

Examples

Ako budem imao vremena, doći ću.
Ako budem imati vremena, doći ću.
Futur II takes the l-participle 'imao', not the infinitive 'imati'.
Kad budeš završio posao, javi mi se.
Kad budeš završiti posao, javi mi se.
After 'budeš' you need the participle 'završio', not the infinitive.
Ako bude padala kiša, ostaćemo kod kuće.
Ako će padati kiša, ostaćemo kod kuće.
A future condition in an 'ako' clause uses Futur II (bude padala), not Futur I.

Common mistakes

Using the infinitive after budem instead of the l-participle
Ako budem raditi, zvaću te.
Ako budem radio, zvaću te.
Futur II is 'budem' + l-participle (radio/radila), never 'budem' + infinitive.
Using Futur II as a main-clause future
Sutra budem došao.
Sutra ću doći.
Standalone future is Futur I (doći ću); Futur II belongs in subordinate 'ako'/'kad' clauses.

B1Verb tenses

Aorist — Formation & Colloquial Use

Aorist — građenje i upotreba

The aorist is a past tense for a single completed action, built directly from the verb (not with an auxiliary like perfekat). It is mostly formed from perfective verbs: 'dođoh, dođe, dođe, dođosmo, dođoste, dođoše' (I came, you came…). Unlike in some neighboring varieties, the aorist is genuinely alive in spoken Serbian, especially for vivid, immediate, just-happened events: 'Šta reče?' (What did you say?), 'Ode voz!' (The train's gone!), 'Padoh!' (I fell!). It often expresses surprise or a quick reaction. In the singular, the 2nd and 3rd person usually look the same and have no ending. You will hear it constantly in everyday Serbian, so it is worth recognizing and using, not just reading in literature.

Key rule

Aorist = perfective verb stem + -h/-∅/-∅/-smo/-ste/-še; it expresses a single, vivid, usually just-completed past action and is alive in spoken Serbian.

Examples

Šta reče? Nisam te čuo.
Šta rekao? Nisam te čuo.
The aorist 3sg is 'reče'; 'rekao' is the l-participle and needs an auxiliary.
Ode voz, zakasnili smo!
Otišao voz, zakasnili smo!
'Ode' is the vivid aorist; the bare participle 'otišao' without 'je' is ungrammatical.
Dođoh kući i odmah zaspah.
Dođoh kući i odmah zaspao.
Both verbs should be aorist: 'zaspah', not the participle 'zaspao'.

Common mistakes

Using the l-participle where the aorist is meant
Šta rekao?
Šta reče?
A standalone vivid past needs the aorist 'reče'; the participle 'rekao' requires the auxiliary 'je'.
Adding -h to the 2nd/3rd singular
On dođeh kasno.
On dođe kasno.
Only 1sg takes -h; 2sg and 3sg have no ending: 'dođe'.

B1Verb tenses

Imperfect (Imperfekat) — Recognition (Literary)

Imperfekat — prepoznavanje

The imperfekat is an old past tense for an ongoing or repeated past action, formed from imperfective verbs. In modern Serbian it is archaic and literary — you will meet it in older books, folk poetry, the Bible, and elevated style, but almost never in everyday speech, where the perfekat does the job. You need to recognize it, not produce it. Typical forms: 'bejah, bejaše, bejasmo' (I was, he was, we were), 'govorah, govoraše' (I was speaking), 'mišljah' (I was thinking). The endings are roughly -ah/-jah for 1sg, -aše/-jaše for 2/3sg, -asmo, -aste, -ahu. If you see one of these long -aše/-ahu forms in a text, read it as a past continuous and translate it with the ordinary past in your own speech.

Key rule

The imperfekat is an archaic/literary durative past (bejah, govoraše, mišljahu) — recognize it and read it as a past continuous; in your own Serbian use the imperfective perfekat instead.

Examples

Sunce već zalažaše kad stigosmo.
Sunce već zalaziće kad stigosmo.
'zalažaše' is the literary imperfekat (was setting); a future form makes no sense in this past narration.
Onaj starac sedaše svako veče pred kućom.
Onaj starac sedaće svako veče pred kućom.
The durative past 'sedaše' (used to sit) is imperfekat, not a future form.
Bejah mlad i bezbrižan tih godina.
Bejam mlad i bezbrižan tih godina.
The 1sg imperfekat of 'biti' is 'bejah' (or 'beh'), not *bejam.

Common mistakes

Trying to use the imperfekat in everyday speech
Juče govorah s njim na poslu.
Juče sam govorio s njim na poslu.
In modern spoken Serbian the imperfekat is replaced by the imperfective perfekat 'govorio sam'.
Calling the tense 'imperfekt' (Croatian metalanguage)
Ovo je imperfekt glagola biti.
Ovo je imperfekat glagola biti.
The Serbian grammatical term has the fleeting -a-: 'imperfekat', not 'imperfekt'.

B1Verb tenses

Pluperfect (Pluskvamperfekat)

Pluskvamperfekat — građenje

The pluskvamperfekat is the 'had done' tense: it marks an action that was already finished before another past action. You build it in two ways: the perfekat of 'biti' (bio sam, bila si, bilo je…) plus the l-participle — 'bio sam stigao' (I had arrived) — or, more literary, the imperfekat of 'biti' (bejah, beše…) plus the l-participle: 'bejah došao'. The first type with 'bio sam' is the everyday one; the 'bejah' type is bookish. Like all l-participle forms, the participle agrees with the subject: bio sam stigao, bila sam stigla, bili smo stigli. In modern speech Serbian often just uses the plain perfekat and lets context show the order of events, so the pluskvamperfekat is somewhat literary, but you should recognize and be able to form it.

Key rule

Pluskvamperfekat = (perfekat or imperfekat of 'biti') + l-participle, and it marks a past action completed before another past action ('bio sam stigao' = I had arrived).

Examples

Kad sam stigao, voz je već bio otišao.
Kad sam stigao, voz je već otišao bio.
The order is auxiliary + 'bio' + participle: 'bio otišao'; the trailing word order is wrong.
Ona je bila završila posao pre nego što smo došli.
Ona je završila bila posao pre nego što smo došli.
Pluskvamperfekat is 'bila završila'; splitting the parts is ungrammatical.
Bili smo već jeli kad ste pozvali.
Bili smo već jesti kad ste pozvali.
After 'bili smo' you need the l-participle 'jeli', not the infinitive 'jesti'.

Common mistakes

Using the infinitive instead of the l-participle
Bio sam završiti pre toga.
Bio sam završio pre toga.
Pluskvamperfekat needs the l-participle 'završio', never the infinitive 'završiti'.
No agreement on 'bio'
Ona je bio došla ranije.
Ona je bila došla ranije.
'Bio/bila/bilo' agrees with the subject just like the main participle: feminine 'bila'.

B1Verb tenses

Conditional / Potential I (bih + l-participle)

Potencijal — sadašnji (bih radio)

The conditional (potencijal) is the 'would do' form: 'radio bih' (I would work), 'došli bismo' (we would come). You build it from a special auxiliary — bih, bi, bi, bismo, biste, bi — plus the l-participle (the same -o/-la/-li form as the past tense). The auxiliary 'bi' is a clitic, so it usually sits in second position: 'Ja bih to uradio', 'To bih uradio'. Use the conditional for hypothetical actions ('Voleo bih da putujem' — I'd love to travel), for polite requests ('Da li biste mi pomogli?' — Would you help me?), and after 'da' to express wishes. The participle agrees with the subject in gender and number, just like in the past tense, so men say 'radio bih' and women say 'radila bih'.

Key rule

Conditional = bih/bi/bi/bismo/biste/bi (second-position clitic) + l-participle; it means 'would do' and the participle agrees with the subject.

Examples

Voleo bih da putujem u Italiju.
Voleo bi da putujem u Italiju.
First person singular needs 'bih', not 'bi'.
Mi bismo ti rado pomogli.
Mi bi ti rado pomogli.
First person plural is 'bismo', not 'bi'.
Da li biste mogli da ponovite?
Da li bi mogli da ponovite?
Polite plural/formal 'vi' takes 'biste'.

Common mistakes

Using 'bi' for the first person
Ja bi došao sutra.
Ja bih došao sutra.
First person singular of the conditional auxiliary is 'bih', not 'bi'.
Using 'bi' instead of 'bismo' for 1pl
Mi bi otišli ranije.
Mi bismo otišli ranije.
First person plural is 'bismo'.

B1Verb tenses

Past Conditional / Potential II (bio bih radio)

Potencijal — prošli (bio bih radio)

The past conditional says what would have happened — about the past, but it didn't really happen. You build it by adding 'bio/bila/bili' to the present conditional: 'bih + bio + l-participle' → 'bio bih došao' (I would have come), 'bila bih došla', 'bili bismo došli'. Use it for counterfactuals and regrets about the past: 'Da sam znao, bio bih ti rekao' (If I had known, I would have told you), 'Bili bismo stigli na vreme da nije bilo gužve' (We would have arrived on time if there hadn't been traffic). In everyday speech many people use the simpler present conditional ('Da sam znao, došao bih') with the same past meaning, so both are heard, but the full 'bio bih došao' form is the precise way to mark a missed past possibility.

Key rule

Past conditional = present conditional of biti (bih bio / bismo bili) + l-participle = 'would have done'; both 'bio' and the participle agree with the subject.

Examples

Da sam znao, bio bih ti rekao.
Da sam znao, bih ti rekao.
The past counterfactual needs the full 'bio bih rekao', not just the present conditional, for a clear 'would have' meaning.
Bili bismo stigli na vreme da nije bilo gužve.
Bili bi stigli na vreme da nije bilo gužve.
First person plural is 'bismo': 'bili bismo stigli'.
Ona bi bila došla da si je pozvao.
Ona bi bio došla da si je pozvao.
'Bio' must agree with the feminine subject: 'bila došla'.

Common mistakes

Dropping 'bio/bila' so it collapses to the present conditional
Da sam znao, rekao bih ti (za prošli neostvareni događaj).
Da sam znao, bio bih ti rekao.
To explicitly mark a missed PAST possibility, add 'bio': 'bio bih rekao' (would have told).
No agreement on 'bio'
Ona bi bio došla.
Ona bi bila došla.
'Bio/bila/bili' agrees with the subject just like the participle: feminine 'bila'.

B1Verb tenses

Passive with the trpni pridev (Knjiga je napisana)

Trpni glagolski pridev — pasiv

This passive uses 'biti' plus a special participle, the trpni glagolski pridev (passive participle): 'Pismo je napisano' (The letter is/was written), 'Vrata su otvorena' (The doors are open(ed)). The passive participle is formed with -n or -t and agrees with the subject in gender and number, like an adjective: napisan/napisana/napisano/napisani. You form it mostly from perfective transitive verbs: pisati → napisan, otvoriti → otvoren, kupiti → kupljen, uraditi → urađen. If you want to mention who did it, use 'od (strane) + genitive': 'Knjiga je napisana od poznatog pisca'. Often, though, the passive is used precisely to avoid naming the doer. With 'biti' in the present you get a present passive/resultant state; with the past 'bio je' you get a past passive.

Key rule

Participial passive = biti + trpni pridev (-n/-t form), and the passive participle agrees with the subject in gender and number like an adjective.

Examples

Pismo je napisano juče.
Pismo je napisan juče.
The neuter subject 'pismo' needs the neuter participle 'napisano'.
Vrata su otvorena.
Vrata su otvoren.
'Vrata' is plural, so the participle is 'otvorena', not the masculine singular 'otvoren'.
Kuća je sagrađena prošle godine.
Kuća je sagradžena prošle godine.
The participle of 'sagraditi' is 'sagrađena' (with đ), not *sagradžena.

Common mistakes

No agreement of the passive participle with the subject
Vrata su otvoren.
Vrata su otvorena.
The trpni pridev agrees in gender/number with the subject like an adjective: plural 'otvorena'.
Using the active l-participle instead of the passive participle
Zadaci su uradili.
Zadaci su urađeni.
Passive needs the trpni pridev 'urađeni'; 'uradili' is the active past participle.

B1Verb tenses

se-Passive / Reflexive Passive (Knjiga se čita)

Pasiv sa se

The se-passive is the most common, most natural Serbian passive. You use an active verb in the 3rd person plus the clitic 'se', with no named doer: 'Ovde se govori srpski' (Serbian is spoken here), 'Kuća se gradi' (The house is being built), 'Kako se to kaže?' (How do you say that?). The verb agrees with the thing affected, which behaves like the subject: singular thing → 'se' + singular verb ('Knjiga se čita'), plural thing → plural verb ('Knjige se prodaju'). It is especially good for general statements, instructions, and 'one does / people do' meanings: 'Tako se ne radi' (That's not how it's done). Remember 'se' is a second-position clitic, so it usually comes right after the first word: 'Srpski se uči lako'.

Key rule

se-passive = active 3rd-person verb + the second-position clitic 'se', with no agent; the verb agrees with the patient, which acts as the subject.

Examples

Ovde se govori srpski.
Ovde se govore srpski.
Singular patient 'srpski' → singular verb 'govori'.
Knjige se prodaju u toj knjižari.
Knjige se prodaje u toj knjižari.
Plural patient 'knjige' → plural verb 'prodaju'.
Kako se to kaže na srpskom?
Kako to se kaže na srpskom?
'Se' is a second-position clitic; it must come right after 'Kako', not after 'to'.

Common mistakes

Verb not agreeing with the patient's number
Knjige se prodaje ovde.
Knjige se prodaju ovde.
The verb agrees with the patient-subject: plural 'knjige' → 'prodaju'.
Wrong position of the clitic 'se'
Kako to se kaže?
Kako se to kaže?
'Se' is a second-position clitic and follows the first stressed word ('Kako').

B1Verb tenses

Indirect Imperative (neka / nemoj da)

Posredni imperativ — neka, nemoj

Besides the direct imperative (Radi! Dođite!), Serbian has indirect command forms. For a 3rd-person command ('let him/her/them…'), use 'neka' + the present tense: 'Neka dođe' (Let him come / Have him come), 'Neka rade' (Let them work), 'Neka bude tako' (Let it be so). For a prohibition ('don't…'), the natural way is 'nemoj' (singular) / 'nemojte' (plural) + 'da' + present: 'Nemoj da brineš' (Don't worry), 'Nemojte da kasnite' (Don't be late). You can also say 'nemoj' + infinitive ('Nemoj brinuti'), but 'nemoj da + present' is the everyday standard. These forms let you give commands politely or to someone not present, and 'nemoj(te)' is much softer and more common than the bare 'Ne radi!'.

Key rule

Use 'neka' + present for a third-person command ('Neka dođe') and 'nemoj(te) da' + present for a prohibition ('Nemoj da brineš').

Examples

Neka dođe sutra ujutru.
Neka da dođe sutra ujutru.
After 'neka' the verb is the plain present 'dođe'; no extra 'da' is needed.
Nemoj da brineš, sve će biti u redu.
Nemoj brineš, sve će biti u redu.
Use 'nemoj DA brineš' (or 'nemoj brinuti'); 'nemoj brineš' is missing the 'da'.
Nemojte da kasnite na sastanak.
Ne kasnite da na sastanak.
The natural prohibition is 'nemojte da kasnite', not a misplaced 'da'.

Common mistakes

Adding 'da' after 'neka'
Neka da uđe.
Neka uđe.
'Neka' is directly followed by the present tense; there is no 'da'.
Dropping 'da' after 'nemoj'
Nemoj brineš.
Nemoj da brineš.
The standard pattern is 'nemoj da + present' (or 'nemoj + infinitive'), not 'nemoj' + bare present.

B1Verb tenses

Past-Tense Choice in Narrative (perfekat vs aorist)

Izbor prošlog vremena u pripovedanju

When you tell a story in Serbian, you have several past tenses to choose from, each with a different effect. The perfekat (radio sam, došli su) is the neutral, all-purpose past — the backbone of any narration. The aorist (dođoh, reče, pade) makes single, sudden actions vivid and immediate, great for the dramatic moments. The pluskvamperfekat (bio sam stigao) sets the background, an action that had already happened before the story's main events. You can even switch to the present tense to make a past scene feel live and close ('Idem ja ulicom, kad odjednom…' — narrative present). A good storyteller mixes them: perfekat to carry the plot, aorist for punchy moments, pluskvamperfekat for what came before, and the narrative present for drama.

Key rule

Use the perfekat as the default narrative past, the aorist for vivid single events, the pluskvamperfekat for what had happened earlier, and the narrative present for heightened drama.

Examples

Šetao sam parkom kad odjednom pade kiša.
Šetao sam parkom kad odjednom padne kiša.
For the sudden past event use the aorist 'pade', not the present 'padne'.
Kad smo stigli, predstava je već bila počela.
Kad smo stigli, predstava je već počela bila.
Pluskvamperfekat is 'bila počela' in that order; the trailing 'bila' is wrong.
Bilo je hladno i padao je sneg.
Bi hladno i pade sneg celu zimu.
Ongoing background is the imperfective perfekat ('bilo je', 'padao je'), not the punctual aorist.

Common mistakes

Using the aorist for durative background
Celu zimu pade sneg.
Celu zimu je padao sneg.
Ongoing/repeated background takes the imperfective perfekat 'je padao', not the punctual aorist.
Missing anteriority where it matters
Kad smo stigli, voz je otišao.
Kad smo stigli, voz je već bio otišao.
To show the train left BEFORE we arrived, use the pluskvamperfekat 'bio otišao'.

B1Verb usage

Prefixed-Perfective Motion (doći, otići, ući, izaći)

Glagoli kretanja — prefiksacija

Serbian does not use a determinate/indeterminate motion system. Instead, it builds directional motion verbs by adding a prefix to a base verb of going, and those prefixed verbs are almost always perfective (one completed movement). From 'ići' (to go) you get 'doći' (come/arrive), 'otići' (leave/go away), 'ući' (enter), 'izaći' (exit), 'preći' (cross), 'sići' (come down), 'proći' (pass by). Each prefix adds a direction. The matching imperfectives (for repeated or ongoing motion) come from a different stem: 'dolaziti, odlaziti, ulaziti, izlaziti'. So choose the prefixed perfective for a single arrival or departure, and the '-laziti' imperfective for habit or process.

Key rule

Build directional motion with a prefix on a base verb; the prefixed form is perfective (one trip), and its imperfective comes from the '-laziti' stem for habit or process.

Examples

Kad dođem kući, javiću ti se.
Kad dolazim kući, javiću ti se.
A single future arrival needs the perfective 'doći' (dođem), not the imperfective 'dolaziti'.
Moram da odem ranije danas.
Moram da odlazim ranije danas.
One planned departure is the perfective 'otići' (odem); 'odlaziti' would mean repeated leaving.
Uđi, molim te, hladno je napolju.
Ulazi, molim te, hladno je napolju.
A single invitation to enter uses the perfective imperative 'uđi', not the imperfective 'ulazi'.

Common mistakes

Using the imperfective for a single future trip
Sutra dolazim kod tebe u pet.
Sutra ću doći kod tebe u pet.
One specific future arrival is a bounded event, so the perfective 'doći' in the future is more precise than habitual 'dolaziti'.
Using a perfective present for present time
Sada dođem na posao.
Sada dolazim na posao.
Perfective verbs have no present-time meaning; for an action happening now use the imperfective 'dolaziti'.

B1Verb usage

The Verbs ići / hodati / šetati (go, walk, stroll)

Glagoli ići, hodati, šetati

Serbian does not pair these as 'one-direction vs many-directions' verbs. They are simply three different words with three meanings. 'Ići' is the general verb 'to go' (by any means, in any direction): 'Idem u školu.' 'Hodati' means 'to walk, to be on foot, to move on foot': 'Beba je naučila da hoda.' 'Šetati (se)' means 'to stroll, to take a walk for pleasure': 'Šetamo se parkom.' So 'idem' tells where you are heading, 'hodam' stresses moving on your feet, and 'šetam se' means a leisurely walk. Choose the verb by meaning, not by a determinate/indeterminate rule.

Key rule

These are three distinct lexical verbs, not a motion pair: 'ići' = go (to a place), 'hodati' = walk/be on foot, 'šetati se' = stroll for pleasure.

Examples

Svako jutro idem na posao autobusom.
Svako jutro hodam na posao autobusom.
Heading to a destination is 'ići'; 'hodati' (be on foot) clashes with going by bus.
Dete je tek naučilo da hoda.
Dete je tek naučilo da ide.
The ability to walk on one's feet is 'hodati', not 'ići'.
Posle večere se šetamo pored reke.
Posle večere idemo pored reke.
A leisurely walk for pleasure is 'šetati se'; 'ići' would just mean travelling there.

Common mistakes

Using 'hodati' for going to a destination
Hodam u prodavnicu po hleb.
Idem u prodavnicu po hleb.
Reaching a place is 'ići'; 'hodati' only describes the act of moving on foot, not the goal.
Using 'ići' for a leisurely walk
Idemo da se opustimo malo po parku.
Šetamo se da se opustimo malo po parku.
A relaxing stroll is 'šetati se'; 'ići' is neutral motion toward a goal.

B1Verb usage

Reflexive se — Types (true / reciprocal / mediopassive)

Tipovi povratnih glagola sa se

The little word 'se' attaches to verbs for several different reasons. True reflexive: the subject acts on itself — 'Perem se' (I wash myself). Reciprocal: people act on each other — 'Vole se' (they love each other), 'Gledaju se' (they look at each other). Inherent (lexical) reflexives: 'se' is just part of the verb and has no separate meaning — 'smejati se' (to laugh), 'bojati se' (to be afraid), 'nadati se' (to hope), 'sećati se' (to remember). Mediopassive: 'se' makes the verb behave like a passive/spontaneous event — 'Vrata se otvaraju' (the door opens), 'Knjiga se dobro prodaje' (the book sells well). Same 'se', four jobs.

Key rule

The clitic 'se' has four jobs — true reflexive (self), reciprocal (each other), inherent (part of the verb), and mediopassive (passive/impersonal) — so identify the type, don't translate it word-for-word.

Examples

Ujutru se perem i oblačim.
Ujutru perem i oblačim.
True reflexive: the action returns to the subject, so 'se' is required.
Ana i Marko se poznaju godinama.
Ana i Marko poznaju godinama.
Reciprocal: they know each other, which needs 'se'.
Deca se smeju glasno.
Deca smeju glasno.
'Smejati se' is an inherent reflexive; 'se' is part of the verb and cannot be dropped.

Common mistakes

Dropping 'se' from an inherent reflexive
Nadam da ćeš doći.
Nadam se da ćeš doći.
'Nadati se' is a lexical reflexive; the 'se' is obligatory and cannot be omitted.
Putting 'se' in the wrong position
Perem ujutru se.
Ujutru se perem.
The clitic 'se' must stand in second position, not at the end of the clause.

B1Verb usage

Modal Verbs — Full Use (moći, morati, smeti, trebati)

Modalni glagoli — proširenje

The core modals are 'moći' (can/be able), 'morati' (must/have to), 'smeti' (may/be allowed), and 'trebati' (need/should). In Serbian they normally take 'da' + present, not a bare infinitive: 'Moram da idem', 'Mogu da dođem', 'Smem li da uđem?', 'Treba da učiš'. Watch the negatives closely: 'ne moram' = 'I don't have to' (no obligation), but 'ne smem' = 'I must not / I'm not allowed'. So 'must not' is 'ne smem', never 'ne moram'. 'Trebati' for 'should' is usually impersonal: 'Treba da odem' (I should go), not 'Trebam da odem'.

Key rule

Modals take 'da' + present by default; remember 'ne smem' = must not / not allowed (≠ 'ne moram' = don't have to), and use impersonal 'treba da' for 'should'.

Examples

Moram da idem na posao u sedam.
Moram ići na posao u sedam.
The neutral standard complement is 'da' + present; the bare infinitive is more written/western.
Ne smeš da pušiš ovde.
Ne moraš da pušiš ovde.
'You must not smoke' is 'ne smeš'; 'ne moraš' would only mean 'you don't have to smoke'.
Da li smem da otvorim prozor?
Da li mogu da otvorim prozor?
For permission 'may I' the precise modal is 'smeti'; 'moći' asks about ability.

Common mistakes

Using 'ne moram' for 'must not'
Ne moraš da kasniš na sastanak.
Ne smeš da kasniš na sastanak.
'Must not / not allowed' is 'ne smeti'; 'ne morati' only negates obligation (don't have to).
Personal 'trebati' for 'should'
Trebam da odem ranije.
Treba da odem ranije.
Standard Serbian expresses 'should' with the impersonal 'treba da' construction.

B1Verb usage

da + Present vs Infinitive — In Depth

Da + prezent i infinitiv — produbljeno

In standard Serbian, the default complement after modals, phase verbs and 'want'-type verbs is 'da' + present: 'Hoću da idem', 'Počinjem da radim', 'Volim da čitam'. The bare infinitive ('hoću ići') also exists, but it is more formal, written, or western, and you should treat 'da' + present as the everyday neutral choice. There is one place the infinitive is preferred: with the future auxiliary in the fused form — 'radiću', 'doći ću'. The infinitive is also common in impersonal instructions and headlines ('Ne dirati!', 'Čekati'). When the subject of both verbs is the same, both options work; when subjects differ, only 'da' is possible.

Key rule

Default to 'da' + present in standard Serbian; use the infinitive mainly in the future tense, in impersonal instructions/headlines, and in formal/written register — and remember only 'da' allows a different subject.

Examples

Hoću da naučim da plivam.
Hoću naučiti da plivam.
The neutral everyday choice after 'hteti' is 'da' + present, not the marked infinitive.
Počeo je da uči srpski prošle godine.
Počeo je učiti srpski prošle godine.
After phase verbs the standard complement is 'da' + present in colloquial Serbian.
Hoću da ti dođeš na vreme.
Hoću doći ti na vreme.
When the subordinate subject differs (you, not I), only 'da' + present is possible.

Common mistakes

Using the infinitive where the subjects differ
Želim doći ti sutra.
Želim da ti dođeš sutra.
The infinitive can only share the main subject; a different subordinate subject forces 'da' + present.
Defaulting to the infinitive in everyday speech
Moram raditi do kasno.
Moram da radim do kasno.
Standard colloquial Serbian prefers 'da' + present; the infinitive is more written/formal.

B1Verb usage

Verb Government — Cases Required by Verbs (radovati se + dat)

Rekcija glagola — padež dopune

Many Serbian verbs do not take an accusative direct object; instead they 'govern' a specific case, and you simply have to learn it with the verb. Some common patterns: 'radovati se', 'nadati se', 'diviti se' take the dative ('Radujem se letu'); 'bojati se', 'sećati se', 'plašiti se', 'odreći se' take the genitive ('Bojim se mraka'); 'baviti se', 'služiti se', 'ponositi se' take the instrumental ('Bavim se sportom'). Other verbs need a preposition + case: 'misliti na' + accusative, 'brinuti o' + locative, 'verovati u' + accusative. Learn each verb together with the case (or preposition) it requires.

Key rule

Some verbs govern a fixed non-accusative case (radovati se + dat, bojati se + gen, baviti se + instr) or a preposition + case; learn the case as part of the verb.

Examples

Radujem se tvom dolasku.
Radujem se tvoj dolazak.
'Radovati se' governs the dative, so the complement is 'tvom dolasku', not the accusative.
Bojim se velikih pasa.
Bojim se velike pse.
'Bojati se' takes the genitive ('velikih pasa'), not the accusative.
Bavim se fotografijom već godinama.
Bavim se fotografiju već godinama.
'Baviti se' governs the instrumental ('fotografijom').

Common mistakes

Using accusative after a dative-governing verb
Divim se njen talenat.
Divim se njenom talentu.
'Diviti se' governs the dative, so the complement must be in the dative.
Using accusative after a genitive-governing verb
Plašim se visinu.
Plašim se visine.
'Plašiti se' takes the genitive of the thing feared.

B1Verb usage

Impersonal treba / ima / nema (Ima ljudi; Treba raditi)

Bezlične konstrukcije — treba, ima, nema

Serbian has very useful subjectless (impersonal) constructions. 'Ima' + genitive means 'there is/are': 'Ima hleba', 'Ima ljudi napolju'. Its negative is 'nema' + genitive: 'Nema vremena', 'Nema mleka'. Note 'ima/nema' stay in the third person singular no matter how many things there are. Impersonal 'treba' means 'one should / it is necessary': 'Treba raditi' or 'Treba da se radi'. With a dative it means 'X needs something': 'Treba mi pomoć', 'Trebaju mi knjige' (here the verb agrees with the thing needed). These constructions have no grammatical subject in the nominative.

Key rule

Use 'ima/nema' + genitive for 'there is/are' (frozen 3sg), impersonal 'treba (da)' for 'one should', and 'treba mi + nominative thing' for 'I need', where the verb agrees with the thing.

Examples

Ima hleba u kuhinji.
Ima hleb u kuhinji.
Existential 'ima' takes the genitive ('hleba'), not the nominative.
Nema više mleka.
Nema više mleko.
Negative existential 'nema' governs the genitive ('mleka').
Ima mnogo ljudi na trgu.
Imaju mnogo ljudi na trgu.
Existential 'ima' is frozen in the 3sg even with a plural; '*imaju' is wrong here.

Common mistakes

Using nominative after 'ima/nema'
Nema voda u boci.
Nema vode u boci.
Existential 'ima/nema' governs the genitive ('vode').
Making 'ima' agree with a plural
Ima dvadeset studenata u sali — *imaju.
Ima dvadeset studenata u sali.
The existential 'ima' is frozen in the 3sg regardless of how many.

B1Verb usage

Aspect Choice inside da-Clauses

Vid u da-rečenici

After 'da', you still choose between the imperfective and the perfective verb, and the choice changes the meaning. Imperfective inside the 'da'-clause means an ongoing, repeated, or general action: 'Hoću da spavam' (I want to sleep / be asleep). Perfective means one complete, bounded event with a result: 'Hoću da zaspim' (I want to fall asleep). Compare 'Moram da učim' (I must study, generally) with 'Moram da naučim ovu lekciju' (I must learn this one lesson). After 'da' the perfective present is not a present-time meaning; it points to a single completed action you aim to achieve. Pick the aspect by what you mean: process vs single result.

Key rule

After 'da', choose imperfective for an ongoing/habitual/general action and perfective for one bounded, completed event with a result; the meaning shifts with the aspect.

Examples

Hoću da zaspim, ali ne mogu.
Hoću da spavam, ali ne mogu.
'Zaspim' (perfective: fall asleep, one moment) fits 'but I can't'; 'spavam' (be asleep) is a different meaning.
Moram da naučim ovu lekciju večeras.
Moram da učim ovu lekciju večeras.
Mastering one specific lesson is the perfective 'naučim'; 'učim' would mean the general activity of studying.
Volim da čitam pre spavanja.
Volim da pročitam pre spavanja.
A habitual enjoyment is the imperfective 'čitati'; the perfective 'pročitati' implies finishing one specific text.

Common mistakes

Using imperfective for a single intended result
Moram da pišem ovo pismo i da ga pošaljem.
Moram da napišem ovo pismo i da ga pošaljem.
One completed letter calls for the perfective 'napisati'; the imperfective marks an ongoing process.
Using perfective after a phase verb
Počela je da nauči klavir.
Počela je da uči klavir.
Phase verbs (početi, prestati) describe a process and take the imperfective in the 'da'-clause.

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B1 Serbian Grammar — 63 Topics & Common Mistakes

Prefixes that Add Meaning + Aspect

Secondary Imperfectives (-ava-/-iva-)

Suffix-Based Pairs (kupiti/kupovati, baciti/bacati)

Biaspectual Verbs (telefonirati, čuti, videti)

Aspect with Phase Verbs (početi / prestati + impf)

Aspect in the Imperative (Pročitaj! vs Čitaj!)

Aspect & the Aorist (mostly perfective)

Aspect & Motion-Verb Prefixes (ići→doći→otići)

Aspect × Tense/Mood Compatibility Overview

Genitive vs Accusative Object

Instrumental: Means (no preposition) vs Company (sa)

Recipient: Dative vs za + Accusative

Locative (place) vs Accusative (motion) — Review

Genitive in Time Expressions

Instrumental in Time Expressions

Vocative — Consolidation & Palatalisation

Genitive with Numbers & Quantity — Review

Consonant Alternations in Inflection (sibilarizacija, palatalizacija)

Voicing Assimilation (jednačenje suglasnika po zvučnosti)

Fleeting a (nepostojano a: otac→oca)

l/o Alternation (posao→posla; radio→radila)

Word Formation — Basic Derivation (-ar, -ica, -ost)

Comma Rules — Basics (vocative, da/jer/koji clauses, lists)

Ekavian vs Ijekavian — Variation (Recognition)

Latin vs Cyrillic — Usage & Register

Full Clitic Order (li / AUX / DAT / ACC / se / je)

je-Drop with se (nasmejao se, not se je)

The Interrogative li — Separate from the Cluster

koji — Full Declension & Relative Use

Relative Words (koji, što, čiji, gde, kada)

Indefinite Pronouns (neko, nešto, neki, nekakav)

Negative Pronouns (niko, ništa, nijedan) + Concord

Possessive Dative (Boli me glava; Majka mu je…)

Relative Clauses with koji

Relative što (for clauses, neuter, colloquial)

Reported Speech (Rekao je da…)

Real Conditional with ako

Unreal Conditional (Da znam, rekao bih)

Purpose Clauses with da / kako bi

Concessive Clauses (iako, mada, premda, makar)

Temporal Clauses — Advanced (pre nego što, čim, otkad)

Correlative Connectors (i… i; ili… ili; ni… ni)

Consequence Connectors (zato, dakle, stoga, te)

Adversative Connectors (ali, nego, već, međutim)

Word Order & Information Structure — Intro

Future II (budem + l-participle)

Aorist — Formation & Colloquial Use

Imperfect (Imperfekat) — Recognition (Literary)

Pluperfect (Pluskvamperfekat)

Conditional / Potential I (bih + l-participle)

Past Conditional / Potential II (bio bih radio)

Passive with the trpni pridev (Knjiga je napisana)

se-Passive / Reflexive Passive (Knjiga se čita)

Indirect Imperative (neka / nemoj da)

Past-Tense Choice in Narrative (perfekat vs aorist)

Prefixed-Perfective Motion (doći, otići, ući, izaći)

The Verbs ići / hodati / šetati (go, walk, stroll)

Reflexive se — Types (true / reciprocal / mediopassive)

Modal Verbs — Full Use (moći, morati, smeti, trebati)

da + Present vs Infinitive — In Depth

Verb Government — Cases Required by Verbs (radovati se + dat)

Impersonal treba / ima / nema (Ima ljudi; Treba raditi)

Aspect Choice inside da-Clauses