영문을

what's going on

→ 영문
phrase Rare #27,114
what's going on Usually used with 알다 or 모르다 to refer to the reason or meaning of a situation.
KO: 왜 화가 났는지 영문을 모르겠어요.
EN: I have no idea why they're angry.

영문을 모르겠군요

I don't know why.

— 하얀 리본 (2009)

“저도 영문을 모르겠어요.”

I have no idea either.

하지만 영문을 알 수 없다

But I can't figure out why.

— 산딸기 (1957)