didn't know that …
그녀가 바로 내 뒤에 서 있는 줄 몰랐다.
I didn't realize she was standing right behind me.
톰은 메리가 늦을 줄 몰랐다
Tom didn't know that Mary would be late.
이렇게 많이 울 줄 몰랐다
I didn't know I would cry this much.
— 중경삼림 (1994)