잘 모르겠다

I'm not sure

→ 잘

phrase Rare #14,536

I'm not sure A common way to express uncertainty or say that you do not really know. The plain ending -겠다 can make it sound like a personal statement or conclusion.

KO: 이 문제의 답은 잘 모르겠다.

EN: I'm not sure of the answer to this question.

하지만 나는 잘 모르겠다

But I'm not really sure.

— 잠입자 (1979)

글쎄, 잘 모르겠다

Well, I’m not really sure.

— 히든 (2005)

사실 잘 모르겠다.

Actually, I don't know.

— 퍼펙트 스트레인저 (2016)

잘 모르겠다

I'm not really sure.

— 잠입자 (1979)