했나 봐요

I guess [someone] did

→ 하다
phrase Rare #21,923
I guess [someone] did Expresses a tentative guess or inference about a past action. The subject is understood from context, and it can also mean “it seems [someone] did.”
KO: 민수는 벌써 출발했나 봐요.
EN: I guess Minsu has already left.

예상 못 했나 봐요?

You didn't expect that, did you?

— 영원 (2025)