알고 있었나

did (you) know?

→ 알다

phrase Rare #27,379

did (you) know? The subject is understood from context. The ending -나 makes this a casual question; with 봐요, as in 알고 있었나 봐요, it means “it seems (someone) knew.”

KO: 그 소식을 알고 있었나?

EN: Did you know the news?

맥베인도 알고 있었나?

Did McBain know too?

— 옛날 옛적 서부에서 (1968)

다 알고 있었나?

Did you know everything?

— 반지의 제왕: 반지 원정대 (2001)

쭉 알고 있었나 봐요

Looks like you knew all along.

— 잉글리쉬 페이션트 (1996)