그런 건 아니죠

that's not necessarily the case

→ 그렇다
phrase Uncommon #11,632
that's not necessarily the case A polite way to deny or qualify an assumption. 건 is a contraction of 것은, and the ending 죠 seeks agreement or confirmation. Depending on context, it can also mean “that’s not it” or “it’s not like that.”
KO: 모든 사람이 그런 건 아니죠.
EN: That’s not necessarily true of everyone.

, 설마 , 강간 그런 건 아니죠?

Oh, surely it’s not something like, like rape, is it?

— 브로커 (2022)

설마 우리 그런 건 아니죠?

Surely that's not us?

— 영원 (2025)

그런 건 아니죠

That's not necessarily the case.

— 싸이코 (1960)