생각하지 않아

don't think

→ 생각하다
phrase Uncommon #7,932
don't think A negative form of 생각하다 ("to think"). Depending on the subject and context, it can mean "doesn't think" or, with question intonation, "don't you think?" The ending 않아 is informal.
KO: 나는 그게 좋은 생각이라고 생각하지 않아.
EN: I don't think that's a good idea.

그것에 대해서 나쁘게 생각하지 않아.

I don't think badly of it.

— 퍼펙트 스트레인저 (2016)