don't know (that)
나 넥타이 매고 태어난 거 몰라?
Don't you know I was born wearing a tie?
— 타인의 삶 (2006)
토토로 엄청 큰 거 몰라?
You know how huge Totoro is, right?
— 아무도 모른다 (2004)
저 자식 멍청한 거 몰라?
Doesn't that kid know he's stupid?
— 무간도 (2002)