A small set of Croatian adverbs leads a double life. As question words they front a clause and demand an answer — Kako znaš? ("How do you know?"). As connective (relative) adverbs the very same words stop asking and start linking: they hook a subordinate clause onto a noun or a verb — mjesto gdje živim ("the place where I live"). English does this too (where asks a question and also links: the house where I grew up), so the concept is familiar. What is special about Croatian is that the question/connective pair carries along all the fine distinctions baked into these words — most strikingly the three-way location / destination / source split of gdje / kamo / odakle, which survives intact when the words switch from asking to connecting.
The words that do both jobs
These are the adverbs that work as both question words and clause connectors. (For koji, tko, što — which are pronouns, not adverbs — see the relative and interrogative pronoun pages.)
| Word | As a question | As a connector |
|---|---|---|
| kako | how? | (the way) how / as |
| gdje | where? (location) | where (at which place) |
| kamo | where to? (destination) | where (to which place) |
| odakle | where from? (source) | where (from which place) |
| kada / kad | when? | when (at which time) |
| zašto | why? | (the reason) why |
| koliko | how much / many? | (as much / as) as |
The mechanism is the same for all of them. In a direct question the word is fronted and the clause is independent: it stands alone with a question mark. In connective use the word sits inside a longer sentence, introducing a clause that modifies a noun (dan kad…, "the day when…") or completes a verb (reci mi kako…, "tell me how…").
Question use: the word fronts
In a question, the interrogative adverb comes first and pulls the clause into question shape. Note where the second-position clitics land — right after the fronted question word.
Kako znaš da je on kriv?
How do you know he's guilty? — 'kako' fronts a direct question.
Zašto nisi nazvao kad si stigao?
Why didn't you call when you arrived? — 'zašto' fronts; note the clitic 'nisi' in second position.
Koliko košta karta do Splita?
How much does a ticket to Split cost? — 'koliko' = how much, fronting the question.
The full inventory of question-word behaviour — fronting, intonation, multiple wh-words — is on the wh-questions page.
Connective use: the word links a clause
Now the same words, no longer asking anything, hook a clause onto something earlier. There are two common patterns.
As relative adverbs, they attach a clause to a noun of place, time, or reason — exactly where English uses where, when, why:
Ovo je kafić gdje smo se prvi put sreli.
This is the café where we first met. — 'gdje' relates the clause to 'kafić' (a place).
Sjećam se dana kad sam te upoznao.
I remember the day when I met you. — 'kad' relates the clause to 'dana' (a time).
Ne razumijem razlog zašto su otkazali sastanak.
I don't understand the reason why they cancelled the meeting. — 'zašto' relates the clause to 'razlog'.
As indirect-question / manner connectors, they complete a verb of saying, knowing, or asking — turning a question into an embedded clause. Crucially, the word order then becomes statement order, not question order (no inversion):
Pokaži mi kako se to radi.
Show me how that's done. — 'kako' links an embedded clause to 'pokaži'; statement order.
Pitala je kada krećemo.
She asked when we're leaving. — 'kada' embeds an indirect question after 'pitala'.
The gdje / kamo / odakle split survives into connective use
This is the insight that makes Croatian place connectors more precise than English where. Croatian keeps three separate words for location (gdje, "at which place"), destination (kamo, "to which place"), and source (odakle, "from which place") — and this three-way distinction does not dissolve when the words become relative connectors. You must pick the connector that matches the motion logic of the inner clause, just as you would when asking the question. (This is the connective face of the same split treated on adverbs of place.)
| Inner clause logic | Connector | Example phrase |
|---|---|---|
| being / staying at a place | gdje | mjesto gdje živim (the place where I live) |
| going to a place | kamo | mjesto kamo idem (the place where I'm going) |
| coming from a place | odakle | grad odakle dolazim (the city I come from) |
Vrati se na mjesto gdje si bio jutros.
Go back to the place where you were this morning. — 'gdje': the inner clause is location (being).
Ne znam mjesto kamo idu na ljeto.
I don't know the place where they go in the summer. — 'kamo': the inner clause is destination (going to).
To je selo odakle potječe moja baka.
That's the village my grandmother comes from. — 'odakle': the inner clause is source (coming from).
In colloquial speech gdje is creeping into the destination slot here too (mjesto gdje idem for "the place I'm going"), exactly as it does in plain questions. As a learner, produce the precise kamo / odakle in writing and careful speech; recognise the loose colloquial gdje when you hear it.
kako and koliko: degree connectors too
Two of these double as comparative-style connectors. Kako can mean "as" in set comparisons (Učini kako želiš, "Do as you wish"), and koliko links amounts (Uzmi koliko trebaš, "Take as much as you need"). Here the word is no longer asking how or how much — it is matching one quantity or manner to another.
Učini kako misliš da je najbolje.
Do as you think best. — 'kako' = 'as', a manner connector, not a question.
Uzmi koliko ti treba, ima dovoljno.
Take as much as you need, there's enough. — 'koliko' = 'as much as', linking quantities.
Common Mistakes
❌ Ovo je grad gdje idem na ljeto.
Imprecise — going TO a place is destination, so use 'kamo': 'grad kamo idem'. 'Gdje' is location only (careful style).
✅ Ovo je grad kamo idem na ljeto.
This is the city where I'm going for the summer. — 'kamo' for destination.
❌ Pitala je kada krećemo li.
Incorrect — an embedded indirect question uses the connector alone, no 'li': 'Pitala je kada krećemo'.
✅ Pitala je kada krećemo.
She asked when we're leaving. — connective 'kada', no question particle.
❌ Reci mi gdje si od.
Incorrect — 'where from' is a single word 'odakle': 'Reci mi odakle si'.
✅ Reci mi odakle si.
Tell me where you're from. — single connector 'odakle'.
❌ To je razlog zato su otišli.
Incorrect — the connector 'why' is 'zašto'; 'zato' means 'that's why / therefore', a different word.
✅ To je razlog zašto su otišli.
That's the reason why they left. — relative 'zašto'.
Key Takeaways
- The adverbs kako, gdje, kamo, odakle, kada, zašto, koliko all work both as question words (fronted, standalone) and as clause connectors (embedded, linking).
- Connectors attach a clause to a noun (relative: mjesto gdje…, dan kad…, razlog zašto…) or complete a verb (indirect question: reci mi kako…, pitala je kada…).
- Embedded clauses take statement word order, not question order.
- The location / destination / source split (gdje / kamo / odakle) carries straight into connective use: mjesto gdje živim vs mjesto kamo idem vs grad odakle dolazim.
- kako ("as") and koliko ("as much as") double as degree/manner connectors in comparisons.
- Don't confuse zašto ("why") with zato ("therefore, that's why").
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Start learning Croatian→Related Topics
- Adverbs of PlaceA2 — Location vs destination vs source — ovdje/ovamo/odavde and the gdje/kamo/odakle triad.
- Wh-Questions (Question Words)A1 — Croatian content questions with tko, što, koji, kakav, čiji and the place/time/manner words — the question word comes first, drags any preposition with it, and takes whatever case the verb assigns.
- Relative Clauses in DepthB1 — How koji, što and čiji build relative clauses — agreement, case from the clause, pied-piped prepositions, and the restrictive/non-restrictive comma.
- Adverbs of TimeA2 — When, how often, and the high-value već / još contrast and its link to aspect.
- Indirect and Rhetorical QuestionsB1 — Embedded yes/no questions with li or da li, indirect wh-questions that keep their question word, the critical absence of tense backshift, and rhetorical questions with zar and tko zna.