Compound and Complex Sentences | Serbian Grammar

A compound sentence joins clauses of equal status; a complex sentence makes one clause dependent on another. Serbian uses conjunctions, finite verb forms, case, and punctuation to show the relationship, but it often leaves out subjects, verbs, or complements that are already recoverable. That ellipsis is normal grammar, not an incomplete version of English.

The practical skill is to decide what kind of relationship you are building before choosing a connector or comma.

From One Clause to Two

Start with a complete minimal clause:

Јелена је завршила извештај.

Jelena finished the report.

Add an equal second event with coordination:

Јелена је завршила извештај и послала га директору.

Jelena finished the report and sent it to the director.

The subject Јелена and auxiliary је are shared. Serbian does not need to repeat she or је before послала because the coordinated predicates have the same subject, tense, and gender. Accusative clitic га supplies the recoverable object “the report.”

Now make the second event a reason:

Јелена је послала извештај јер га је директор тражио пре подне.

Jelena sent the report because the director had requested it before noon.

Јер introduces a subordinate clause. That clause has its own subject директор, its own finite perfect је тражио, and its own clitic domain јер га је.... It explains the main assertion rather than standing as an equal next event.

💡

Coordination asks “what equally ranked item comes next?” Subordination asks “what circumstance, reason, condition, content, or time frame depends on the main clause?”

Coordination: Equal Clauses and Shared Material

Coordinators express different discourse relations. Use и for close addition, а for parallel difference or topic shift, али for a blocked expectation, или for alternatives, and па for sequence or result. Their finer semantic boundaries belong on Coordinating Conjunctions.

Никола је припремио табеле, а Марија је проверила све изворе.

Nikola prepared the tables, while Marija checked all the sources.

Both clauses are finite and could stand alone. The comma before а marks their contrastive coordinate boundary.

Рок је био кратак, али смо ипак завршили проверу на време.

The deadline was short, but we nevertheless finished the review on time.

The second clause omits ми because first-person plural смо завршили identifies the subject. Али can host the auxiliary clitic immediately: али смо.

Угасили смо светла и закључали сва врата пре поласка.

We turned off the lights and locked all the doors before leaving.

Here и joins two predicates with one subject. There is normally no comma before close additive и, and no repeated смо is needed.

Ellipsis in parallel clauses

Serbian can omit a repeated verb when the remaining phrases form an obvious contrast:

Марко ће донети храну, а Ана пиће.

Marko will bring the food, and Ana the drinks.

The second clause means Ана ће донети пиће. Nominative Ана and accusative пиће, together with parallel а, make the missing predicate recoverable. This compact structure is neutral; repeating the verb is also grammatical when clarity or emphasis requires it.

Do not compress across incompatible government. If coordinated predicates require different cases or prepositions, each must receive its own complement form; see coordination and shared government.

Subordination: One Clause Frames Another

A subordinate clause can express content, time, cause, condition, concession, purpose, or a noun's description. Its finite verb still has normal agreement.

Знам да је Милица већ обавестила све учеснике.

I know that Milica has already informed all the participants.

The content clause да је Милица... fills what is known. Serbian normally retains content да, unlike optional English that.

Кад добијемо коначну потврду, резервисаћемо већу салу.

When we receive final confirmation, we will book a larger room.

The fronted time clause establishes the frame and is followed by a comma. Perfective present добијемо refers to a future boundary; the main clause carries Future I резервисаћемо.

Резервисаћемо већу салу ако се пријави више од педесет људи.

We will book a larger room if more than fifty people register.

The following integrated condition is normally not preceded by a comma. Punctuation follows clause order and integration, not every pause a speaker might make.

Иако је био уморан, Милош је остао док нисмо завршили последњу табелу.

Although he was tired, Miloš stayed until we finished the last table.

This sentence nests two subordinate relations around one main clause: fronted concession иако..., then following endpoint clause док нисмо.... Each finite verb has its own subject and agreement.

Clause Order Packages Information

Subordinate-first order usually turns the dependent situation into a frame already needed for the main point:

Пошто су гости стигли, почели смо вечеру.

After the guests arrived, we started dinner.

Main-first order presents the event first and supplies its temporal or causal qualification afterward:

Почели смо вечеру пошто су сви гости стигли.

We started dinner after all the guests had arrived.

The truth conditions can be close, but information flow differs. The first tells the listener when the main event became possible; the second reports the dinner and then locates it.

Serbian need not insert an explicit subject pronoun in either clause. Agreement in су стигли and смо почели plus context supplies the participants.

💡

Put a dependent clause first when it is the frame from which the main assertion should be interpreted. Put it after the main clause when it completes or narrows an assertion already made.

Every Finite Clause Has Its Own Clitic Domain

Clause linking does not create one enormous clitic cluster. Build the beginning of each finite clause separately.

Кад нам се Јован јавио, рекли смо му да ћемо га сачекати испред станице.

When Jovan contacted us, we told him that we would wait for him outside the station.

Short coordinators а, и, ни normally do not host enclitics alone. They need an accented constituent before the cluster: а ми смо, и одмах се, ни Петар није. Other coordinators such as али, него, па can host a cluster directly.

Стигли смо рано, а организатори су нам већ припремили пропуснице.

We arrived early, and the organizers had already prepared our passes.

The beginning is а организатори су нам, not а су нам организатори. Detailed hosting patterns are on Clitics after Conjunctions.

Punctuation: A Clause-Boundary Workflow

With close additive и or simple или, normally use no comma.
Before coordinating а, али, него, већ, normally write a comma.
After a fronted subordinate clause, write a comma before the main clause.
Before a following integrated да, јер, ако, кад, док clause, normally do not insert an English-style comma.
Serbian can join independent clauses with a comma in a clear asyndetic sequence, but do not copy an English comma splice mechanically. If the relation is not immediately recoverable, use a conjunction, semicolon, justified dash, or full stop.

Светла су се угасила, сала је утихнула.

The lights went out; the hall fell silent. (a tight asyndetic sequence)

Састанак је завршен; записник ћемо послати сутра ујутру.

The meeting is over; we will send the minutes tomorrow morning.

The comma in the first example presents two closely sequenced events as one chain. The semicolon in the second gives two independent assertions a firmer boundary while leaving their relation implicit.

Building a Multi-clause Message

Кад се завршило предавање, остали смо у сали и поставили професорки неколико питања, али нисмо дуго разговарали јер је морала да стигне на следећи час.

When the lecture ended, we stayed in the room and asked the professor several questions, but we did not talk for long because she had to get to her next class.

The fronted time clause frames the message. И coordinates two predicates sharing ми; али introduces a contrasting finite clause with omitted subject; јер supplies its reason. Ellipsis reduces repetition without hiding any controller.

Practice Tasks

Task 1: Build outward from one clause

Start with Марија је позвала клијента. Add one equal action with и, then add a reason with јер, and finally front a time clause. Check punctuation and rebuild the clitic position in every finite clause.

Task 2: Expand the ellipsis

Expand Петар ће припремити текст, а Јелена фотографије into two full clauses. Then compress it again and explain which case forms prove the missing verb and object relation.

Common Mistakes

Putting the comma after the connector

❌ Воз је каснио па, смо пропустили почетак представе.

Incorrect punctuation—the comma belongs before the result connector па, not between па and its clause.

✅ Воз је каснио, па смо пропустили почетак представе.

The train was late, so we missed the beginning of the performance.

Repeating every English subject

❌ Ја сам отворио поруку и ја сам одмах одговорио јер ја сам знао одговор.

Incorrect neutral style—agreement and context make the repeated ја unnecessary, and the јер-clause needs natural clitic order.

✅ Отворио сам поруку и одмах одговорио јер сам знао одговор.

I opened the message and replied immediately because I knew the answer. (male speaker)

Adding a comma before an integrated content clause

❌ Надамо се, да ће време сутра бити боље.

Incorrect—an integrated content clause is not separated from надамо се by a comma.

✅ Надамо се да ће време сутра бити боље.

We hope the weather will be better tomorrow.

Stranding a clitic after a short coordinator

❌ Завршили смо проверу и смо послали резултате управи.

Incorrect—и cannot host смо alone; share the first auxiliary or add an accented constituent.

✅ Завршили смо проверу и послали резултате управи.

We finished the review and sent the results to management.

Key Takeaways

Coordination joins equal units; subordination makes one clause a content, time, cause, condition, or other dependent frame.
Serbian freely omits recoverable subjects, auxiliaries, predicates, and complements when parallel structure keeps them clear.
Punctuation follows connector type, clause order, and integration—not breathing pauses.
Every finite clause creates its own agreement and clitic domain.

Now practice Serbian

Reading grammar gets you part of the way. The exercises are where it sticks — free, no signup needed.

Start learning Serbian →