잘하는 거

what you're good at

→ 잘하다
phrase Common #4,919
what you're good at 거 is a conversational shortening of 것, meaning “thing.”
KO: 네가 잘하는 거를 계속하면 돼.
EN: You can keep doing what you're good at.

난 아무것도 잘하는 거 없으니까 재훈 씨가 알아서 하세요

I'm not good at anything, so you can take care of it yourself, Jaehun.

— Virgin Stripped Bare by Her Bachelors (2000)

걔 거짓말 잘하는 거 몰라?

Don't you know he's good at lying?

— 400번의 구타 (1959)

나 잘하는 거 알아요 정말 잘해요

You know I’m good at it. I’m really good.

— 빅토리아 (2015)

너 잘하는 거 있잖아

You’re good at something, aren’t you?

— Love Untangled (2025)