must go in, should go in
내가 먼저 들어가야 하나?
Should I go in first?
— 잠입자 (1979)
들어가야 돼
I have to go in.
— 타인의 삶 (2006)
금방 들어가야 될 거 같아
I think I need to go in soon.
— 택시운전사 (2017)
병원으로 들어가야 하네.
I have to go into the hospital.
— 다운폴 (2004)