가 있네

there is/are

→ 가
phrase Rare #22,124
there is/are Used conversationally after a noun to express noticing or realizing that something exists, is present, or is possessed. The ending 네 adds a sense of discovery or mild surprise.
KO: 책상 위에 열쇠가 있네.
EN: Oh, there are keys on the desk.

그것도 일리가 있네

That makes sense too.

— 브로커 (2022)

그럼, 여기 둘째가 있네.

Well, here's the second one.

— 햄넷 (2025)