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후회할걸

will regret it

→ 후회하다
verb · potential Rare #24,924
will regret it Often used at the end of a sentence as a warning or prediction.
KO: 그 말을 하면 후회할걸.
EN: You'll regret saying that.
Conjugation of 후회하다
Potential
후회할걸

내가 여기 서 떨어져 죽으면 평생 후회할걸!

If I fall from here and die, I'll regret it for the rest of my life!

— "폭풍의 언덕" (2026)

너도 후회할걸

You’ll regret it too.

— 데드풀과 울버린 (2024)

후회할걸

You'll regret it.

— 더 플랫폼 (2019)