못 할걸

probably can't; probably won't be able to

→ 못

phrase Rare #21,576

probably can't; probably won't be able to Informal sentence ending expressing a confident guess or expectation that someone will not be able to do something. It can also sound like “I bet you can't” or “I don't think you can.”

KO: 우린 못 할걸.

EN: I don't think we'll be able to do it.

근데 못 할걸

But I don't think you can.

— 더 레킹 크루 (2026)

우린 못 할걸

I don't think we can.

— 크리에이터 (2023)

우리 엄마는 절대 아빠 한테 얘기 못 할걸?

My mom will never tell my dad?

— 400번의 구타 (1959)