Complex Relative Clause Structures
Grammar Rule in 30 Seconds
Relative clauses use 'koji' to link nouns to descriptions, matching gender, number, and case of the antecedent.
- Match the gender and number of the noun: 'Čovjek koji (masc. sing.) radi'.
- Match the case of the noun in the clause: 'Knjiga koju (acc.) čitam'.
- Use 'čiji' for possession: 'Djevojka čiji (whose) brat radi ovdje'.
Meanings
Relative clauses provide extra information about a noun using relative pronouns like 'koji'. They function as adjectives for the preceding noun.
Subject/Object identification
Identifying a specific person or thing.
“Čovjek koji sjedi tamo je moj otac.”
“Auto koji sam kupio je crven.”
Possessive relative
Indicating ownership within a clause.
“Dječak čija je lopta nestala plače.”
“Kuća čiji krov prokišnjava je stara.”
Relative Pronoun 'Koji' (Singular)
| Case | Masculine | Feminine | Neuter |
|---|---|---|---|
| Nom. | koji | koja | koje |
| Gen. | kojeg | koje | kojeg |
| Dat. | kojem | kojoj | kojem |
| Acc. | kojeg | koju | koje |
| Loc. | kojem | kojoj | kojem |
| Instr. | kojim | kojom | kojim |
Reference Table
| Form | Structure | Example |
|---|---|---|
| Affirmative | Noun + koji + verb | Čovjek koji radi. |
| Negative | Noun + koji + ne + verb | Čovjek koji ne radi. |
| Possessive | Noun + čiji + noun | Dječak čija je lopta. |
| Preposition | Noun + prep + kojem | Grad u kojem živim. |
| Plural | Nouns + koji/e/a | Ljudi koji rade. |
| Object | Noun + kojeg/u/e | Knjiga koju čitam. |
正式程度
Gospodin koji ondje stoji. (Describing someone)
Čovjek koji tamo stoji. (Describing someone)
Lik koji tamo stoji. (Describing someone)
Tip koji tamo brije. (Describing someone)
Relative Clause Anatomy
Connector
- koji which/that
Agreement
- Gender M/F/N
- Case Nom/Acc/Gen
Examples by Level
Ovo je pas.
This is a dog.
Ovo je kuća.
This is a house.
Ovo je pas koji laje.
This is the dog that barks.
Ovo je kuća koja je velika.
This is the house that is big.
Vidim čovjeka kojeg poznaješ.
I see the man whom you know.
Knjiga koju čitam je dobra.
The book that I am reading is good.
To je projekt na kojem radimo.
That is the project on which we are working.
Osoba s kojom razgovaram je šef.
The person with whom I am speaking is the boss.
Grad u kojem sam rođen je Zagreb.
The city in which I was born is Zagreb.
Prijatelj čijeg sam brata sreo je ovdje.
The friend whose brother I met is here.
Svi oni, bez kojih ne bismo uspjeli, su ovdje.
All those without whom we would not have succeeded are here.
To je odluka nakon koje nema povratka.
That is a decision after which there is no return.
Easily Confused
Koji means 'which/that', čiji means 'whose'.
常见错误
Knjiga koji čitam
Knjiga koju čitam
Čovjek koji vidim
Čovjek kojeg vidim
Auto koja vozim
Auto koji vozim
Djevojka čiji je brat
Djevojka čiji je brat
Kuća u kojoj živim
Kuća u kojoj živim
Prijatelj kojeg volim
Prijatelj kojeg volim
Sve koji znam
Sve koje znam
Čovjek s kojim radim
Čovjek s kojim radim
Odluka koji sam donio
Odluka koju sam donio
Osoba o kojoj pričam
Osoba o kojoj pričam
Sentence Patterns
Ovo je ___ koji/a/e ___.
Ovo je osoba s kojom ___.
To je projekt na kojem ___.
Real World Usage
To je projekt na kojem sam radio.
Ovo je pas koji voli plivati.
Vidim tipa kojeg znaš.
Check the case
Don't forget gender
Use 'čiji' for possession
Smart Tips
Insert 'koji' and match the case of the noun.
Use 'čiji' instead of 'koji'.
Put the preposition before the relative pronoun.
发音
Koji
Pronounced like 'koy-ee'.
Falling intonation
Čovjek koji radi ↘
Statement of fact.
Memorize It
Mnemonic
Koji is the key that unlocks the noun's description.
Visual Association
Imagine a bridge (koji) connecting two islands (the noun and the clause). If the bridge doesn't match the island's shape (gender/case), it collapses.
Rhyme
Koji, koja, koje, match the noun or you'll be lost in the fray.
Story
I met a man (čovjek). He had a hat (šešir). The man who (koji) wore the hat was my friend. The hat which (koji) he wore was blue.
Word Web
挑战
Write 5 sentences describing objects in your room using 'koji'.
文化笔记
Relative clauses are used heavily in formal Croatian to sound educated.
Derived from Proto-Slavic *koji.
Conversation Starters
Koji film si zadnji gledao?
Tko je osoba koju najviše cijeniš?
Gdje je grad u kojem živiš?
Journal Prompts
Test Yourself
Ovo je knjiga ___ čitam.
Which is correct?
Arrange the words in the correct order:
All words placed
Click words above to build the sentence
The man who is working.
Answer starts with: Čov...
Score: /4
练习题
4 exercisesOvo je knjiga ___ čitam.
Which is correct?
koji / radim / projekt / na / je / to
The man who is working.
Score: /4
常见问题 (6)
Croatian is a highly inflected language. The pronoun must match the noun's gender, number, and case to maintain grammatical coherence.
Use 'kojeg' when the pronoun is the direct object in the clause (Accusative case).
Yes, 'koji' is also an interrogative pronoun meaning 'which'. Context distinguishes it from relative usage.
Yes, 'koji' is used for both people and things.
'Koji' is 'which/that', while 'čiji' is 'whose'.
Look at the verb in the relative clause. If the verb requires an object, the pronoun is likely in the Accusative case.
In Other Languages
que / el cual
Croatian requires gender/case agreement, Spanish 'que' is invariant.
qui / que
Croatian is more complex due to case declensions.
der/die/das
German uses articles as pronouns, Croatian uses specific 'koji' forms.
no
Japanese has no gender or case agreement for relative clauses.
alladhi
Arabic agreement is limited to gender/number, not case.
