what is it?
Causal connectors link two clauses by expressing a reason or a consequence. Turkish has three common ones at this level: çünkü ("because"), bu yüzden ("for that reason / so"), and bu sebeple ("for that reason / so"). They differ in what follows the connector: çünkü introduces the cause, while bu yüzden and bu sebeple introduce the consequence.
when to use it
çünkü — use this when you want to give the reason for something already stated. The cause clause comes after çünkü. It can sit between two clauses in the same sentence, or it can open a new sentence that explains the previous one. In informal speech it can also appear at the very end of the clause.
bu yüzden / bu sebeple — use these when the first clause states the reason and the second clause states the result. The consequence clause comes after the connector. Both words are interchangeable in meaning; bu yüzden is slightly more common in everyday speech, while bu sebeple is slightly more formal.
formation
All three connectors are fixed, uninflected words — they do not change form. The only thing that changes is their position in the sentence.
| connector | position | what follows | meaning |
|---|---|---|---|
| çünkü | after the main clause (or clause-final in speech) | cause clause | because |
| bu yüzden | after the cause clause | consequence clause | so / for that reason |
| bu sebeple | after the cause clause | consequence clause | so / for that reason |
Typical sentence patterns:
[result clause] çünkü [cause clause].
[cause clause], bu yüzden / bu sebeple [consequence clause].
[clause] çünkü. (informal, clause-final — çünkü only)
A comma before bu yüzden and bu sebeple is standard in writing. A comma before çünkü is optional but common.
examples in context
common pitfalls
Mixing up the direction of çünkü vs. bu yüzden / bu sebeple. After çünkü you state the cause; after bu yüzden / bu sebeple you state the consequence. A quick test: can you replace the connector with "because"? If yes, use çünkü. Can you replace it with "so"? If yes, use bu yüzden or bu sebeple.
Using bare için between two finite clauses. A common error is Trafik vardı için geç kaldım. This is not correct Turkish. At A2, use çünkü or bu yüzden instead: Geç kaldım çünkü trafik vardı. The construction -DIğI için (which does work with finite-style meaning) is a B1 form and is not needed here.
Putting bu yüzden or bu sebeple at the end of a clause. Only çünkü can move to the end of a clause in informal speech (e.g. Yorgundum çünkü.). Saying Yorgundum bu yüzden. is unnatural. Bu yüzden and bu sebeple always appear at the start of the consequence clause.
Three sentences, graded here. Nothing is saved and no account is needed.
___ pasaportununu yanına aldın, neden vizeyi de almadın?
Fill in the blank with the correct connector word.