Learn Turkish: Yol çok kötüydü, bu yüzden kaza yaptık. - The road was very bad, so we had an accident.

bu yüzden translates to "so," "therefore," or "for this reason." Literally, bu is "this," yüz means "cause" or "reason" in this context, and -den means "from" ("from this reason"). You can absolutely replace it with bunun için or bu nedenle without changing the meaning of the sentence.

Why is the Turkish phrase for "we had an accident" translated as kaza yaptık?

The verb yapmak means "to do" or "to make." In English, we say we "have" an accident, but Turkish uses the phrase kaza yapmak (literally "to make an accident"). Since the subject is "we" and it happened in the past, it becomes yaptık.

Why is there a -y- in the middle of kötüydü?

The word for "bad" is kötü, which ends in a vowel. To say "was bad", we add the past tense suffix -dü. When attaching this suffix directly to a noun or adjective that ends in a vowel, Turkish requires the buffer letter -y- to link them together smoothly, giving us kötü-y-dü.

Could I move bu yüzden to the end of the sentence?