Expresses ability, habit, or expectation
When to use
Expressing ability, Describing habits, Conveying expectations
The nuance
Attach -(으)ㄹ 줄 알다 to verb stems to express ability, habit, or expectation. Past tense is -(으)ㄹ 줄 알았다, negative is -(으)ㄹ 줄 몰랐다. '~할 줄 알다' means 'know how to do'; '~할 줄 모르다' means 'not know how to do' or 'didn't expect'.
