좋겠는데요

would be good, would be nice

→ 좋다
좋 feel pleasant + 겠 conjecture or future + 는데 Background/contrast connective + 요 Polite speech
adjective Rare #23,705
would be good, would be nice A polite, somewhat indirect way to express a wish or suggestion.
KO: 내일은 날씨가 좋겠는데요.
EN: It would be nice if the weather were good tomorrow.
Forms of 좋다

내일 아침이 좋겠는데요

Tomorrow morning would be good.

— 이중 배상 (1944)

일어날 수 있었으면 좋겠는데요

I wish I could get up.

— Dream (2023)

배로 돌아가는 게 좋겠는데요

I think it would be better to go back by boat.

— 아나콘다 (2025)

내가 시간이 없어서 빨리 갔으면 좋겠는데요

I’m short on time, so I’d appreciate it if you could hurry.

— 택시운전사 (2017)

살, 지금 주면 좋겠는데요

Sal, I’d appreciate it if you could give it to me now.

— 똑바로 살아라 (1989)