온 걸

that you came

→ 오다
phrase Common #1,759
that you came 온 걸 is a shortened form of 온 것을. It often appears before 환영하다, meaning “to welcome someone for coming.”
KO: 여기 온 걸 환영해요.
EN: Welcome here.

이미 온 걸 어쩌겠어, 나가사키로 돌려보낼 수도 없고.

What can I do since I've already come here? I can't send it back to Nagasaki.

— 국보 (2025)

베이거스에 온 걸 환영합니다!

Welcome to Vegas!

— 아노라 (2024)

샘 루미스는 마리온이 여기 온 걸 몰랐던 것 같소

It seems Sam Loomis didn't know Marion had come here.

— 싸이코 (1960)

당신 만나러 온 걸 좋아했는데 당신이 기분 나쁜 말을 했나 보죠

I liked coming to see you, but I guess you must have said something hurtful.

— 8과 1/2 (1963)

우리가 온 걸 알아

They know we’re here.

— 스파이더맨: 뉴 유니버스 (2018)