because [someone] doesn't know, since [someone] doesn't know
아직 당신을 잘 모르니까요
Because I don't know you very well yet.
— 연인 (2004)
모르니까요
Because I don't know.
— 마션 (2015)
우린 당신을 모르니까요
It's because we don't know you.
— 헌팅시즌 (2025)