거 알지만

I know, but

→ 것
phrase Rare #24,595
I know, but A conversational form of 것을 알지만, meaning “I know that ..., but ...”. The clause before 거 describes what the speaker knows.
KO: 네가 바쁜 거 알지만 잠깐만 도와줘.
EN: I know you're busy, but please help me for a moment.

터널 싫어하는 거 알지만 같이 가야 해

I know you don't like tunnels, but we have to go through one together.

— 원 배틀 애프터 어나더 (2025)