거 같아서

because it seems like

→ 것
phrase Rare #17,348
because it seems like A conversational shortening of 것 같아서, used to give a reason based on what the speaker thinks or suspects.
KO: 비가 올 거 같아서 우산을 가져왔어요.
EN: I brought an umbrella because it looks like it might rain.

그건 아는데 얘긴 해줘야 할 거 같아서

I know, but I figured I should tell you.

— 오펜하이머 (2023)

내가 아빠를 좀 찾은 거 같아서 뭐래?

I think I found my dad—or something.

— Wonderland (2024)