알 것 같았다

I thought I knew

→ 알다
phrase Common #5,637
I thought I knew The subject depends on context; it can also mean that someone seemed to know.
KO: 나는 답을 알 것 같았다.
EN: I thought I knew the answer.

첫 번째에 내가 제대로 하지 못한 부분이 어디 였는지 알 것 같았다.

I think I figured out where I went wrong the first time.