(으)ㄹ 줄 알다

Know how to do

Explanation

Used to say you know or have the ability to do something.

Details

Different meaning

(으)ㄹ 줄 알다 can also mean 'I thought'.

친구가 갈 줄 알았어요.
I thought my friend would go.
친구가 가는 줄 알았어요.
I thought my friend was going.
친구가 간 줄 알았어요.
I thought my friend was gone.

Korean Grammar in Use

This pattern expresses whether one knows how, or has the ability, to do something. When the verb stem ends in a vowel or ㄹ, -ㄹ 줄 알다 is used, and when the verb stem ends in a consonant, -을 줄 알다 is used. It corresponds to 'know how to' in English.

Details

Comparison: