를 찾아야지

have to find

→ 를
phrase Rare #30,903
have to find The object marker 를 attaches to the thing being sought. 찾아야지 expresses a need or resolve to do something, often in informal speech.
KO: 먼저 출구를 찾아야지.
EN: First, I have to find the exit.

출구를 찾아야지

We need to find the exit.

— 천공의 성 라퓨타 (1986)

아니, 더그 돌아가서 그리프를 찾아야지

No, Doug, we have to go back and find Griff.

— 아나콘다 (2025)

오늘 밤 머물 장소를 찾아야지

I need to find a place to stay tonight.

— 이탈자 (1990)

열쇠를 찾아야지

I need to find the keys.

— 알.이.씨 (2007)