하던

was doing, used to do

→ 하다
하 do; be + 던 Retrospective modifier (past or ongoing past action/state)
verb · imperfect tense Common #5,415
was doing, used to do Describes an action that was ongoing or repeated in the past; it comes before a noun.
KO: 내가 하던 일을 끝냈어.
EN: I finished the work I was doing.
Conjugation of 하다

꼬마와 섹스를 하던 변태 였어

I was a pervert who had sex with a child.

— 미스틱 리버 (2003)

하던 얘기나 마저 하죠

Let's get back to what we were talking about.

— Oldboy (2003)

인형극 하던 남자?

The man who did the puppet show?

— 베로니카의 이중 생활 (1991)

뭐라고 하던?

What did you say?

— 죽은 시인의 사회 (1989)

하던 말 계속해

Go on with what you were saying.

— 쿵푸 허슬 (2004)

드레스 얘길 하던 중 이죠

We were talking about the dress, weren’t we?

— 신경쇠약 직전의 여자 (1988)