거 알잖아요

you know that

→ 것
phrase Rare #25,887
you know that A conversational expression used to remind someone of something assumed to be mutually known. 거 is a colloquial form of 것, and 잖아요 adds the sense of “you know” or “as you know.”
KO: 이런 거 좋아하는 거 알잖아요.
EN: You know I like things like this.

이런 거 좋아하는 거 알잖아요?

You know I like this kind of thing, right?

— 레옹 (1994)

잘못 이란 거 알잖아요

You know that's wrong.

— 부고니아 (2025)

실수 거 알잖아요

You know it was a mistake.

— 노 머시: 90분 (2026)

불편한 거 알잖아요

You know it’s uncomfortable.

— 28년 후: 뼈의 사원 (2026)