Pattern: -(으)ㄹ 줄 몰랐다
-(으)ㄹ 줄 몰랐다 (-(eu)ㄹjulmol-rass-da, (eu)ㄹjulmolrassda)
-(으)ㄹ 줄 몰랐다 expresses surprise or unawareness about something happening or being true.
When and how native speakers actually use it.
Indicates that the speaker did not expect or know about something.
When to use
Expressing surprise, Unexpected situations, Unawareness of ability
The nuance
Attach -(으)ㄹ 줄 몰랐다 to verb stems to express unawareness of ability, future event, or possibility. Use -을 if stem ends with a consonant, -ㄹ if vowel. Past tense is 줄 몰랐다; present is 줄 모른다.
그 사람이 그렇게 빨리 올 줄 몰랐어요.
geu sa-ram-i geu-reoh-ge ppal-ri ol jul mol-rass-eo-yo., geu sa ram i geu reoh ge ppal ri ol jul mol rass eo yo.
'올' expresses future possibility of 'to come', fitting '-ㄹ 줄 몰랐다' perfectly.
너가 그걸 할 줄 몰랐어!
neo-ga geu-geol hal jul mol-rass-eo!, neo ga geu geol hal jul mol rass eo!
Used to express surprise about someone's ability.
비가 올 줄 몰랐는데, 우산을 안 가져왔어요.
bi-ga ol jul mol-rass-neun-de, u-san-eul an ga-jyeo-wass-eo-yo., bi ga ol jul mol rass neun de, u san eul an ga jyeo wass eo yo.
Indicates lack of expectation about a future event.
그 영화가 그렇게 재미있을 줄 몰랐어요.
geu yeong-hwa-ga geu-reoh-ge jae-mi-iss-eul jul mol-rass-eo-yo., geu yeong hwa ga geu reoh ge jae mi iss eul jul mol rass eo yo.
Expresses surprise about an unexpected fact.
그가 거짓말할 줄 몰랐어.
geu-ga geo-jis-mal-hal jul mol-rass-eo., geu ga geo jis mal hal jul mol rass eo.
Shows unawareness of someone's action.
나는 그가 올 줄 몰랐어요.
na-neun geu-ga ol jul mol-rass-eo-yo., na neun geu ga ol jul mol rass eo yo.
Expresses surprise about a future possibility.
그 사람이 그렇게 빨리 올 줄 알았어요.
geu sa-ram-i geu-reoh-ge ppal-ri ol jul al-ass-eo-yo., geu sa ram i geu reoh ge ppal ri ol jul al ass eo yo.
'-ㄹ 줄 알다' expresses expectation or knowledge, opposite of '-ㄹ 줄 몰랐다'.
나는 그가 거짓말할 줄 몰라요.
na-neun geu-ga geo-jis-mal-hal jul mol-ra-yo., na neun geu ga geo jis mal hal jul mol ra yo.
Present tense '몰라요' is unnatural for expressing surprise about future possibility.
Complete the sentence: I didn't expect you to come this quickly.
Choose the correct ending: I didn't know he could sing well.
What does '-을/ㄹ 줄 몰랐다' mean in this sentence?
