What is the difference between 끝나다 and 끝내다?
They both mean 'to finish' or 'to end' but I'm not sure when I should either word.

If I were to say 'I finished my homework', which would be correct?

저는 숙제를 끝났어요.
or
저는 숙제를 끝냈어요.

감사합니다.

Question

What is the difference between 끝나다 and 끝내다?
They both mean 'to finish' or 'to end' but I'm not sure when I should either word.

If I were to say 'I finished my homework', which would be correct?

저는 숙제를 끝났어요.
or
저는 숙제를 끝냈어요.

감사합니다.

Answer

저는 숙제를 끝냈어요 is correct.
끝내다 Means someone finishes something.
for ex  저는 공부를 끝냈어요
            너는 계산을 끝냈니?
끝나다 means something ends.
For ex 영화가 끝났다.
            여름방학이 끝났다.

so  끝내다 needs both subject and object
       끝나다 doesnt need object. Only subject should be.