가 있었는데

there was … but

→ 가
phrase Rare #27,588
there was … but The subject particle 가 marks what existed; 있었는데 connects the statement to what follows, often with a contrast or background context.
KO: 책상 위에 편지가 있었는데 지금은 없어요.
EN: There was a letter on the desk, but now it’s gone.

항상 배에 덩어리가 있었는데 지금은 없어졌어요

I always had a lump in my abdomen, but it’s gone now.

— 레옹 (1994)

라디오가 있었는데 좆같은 라디오 말 이야!

There was a radio—the fucking radio, I mean!

— 똑바로 살아라 (1989)

그쪽 전에도 화가가 있었는데 실패한 원인은 간단해요

There was a painter there before, but the reason they failed is simple.

— 타오르는 여인의 초상 (2019)