who
01
누구
used in questions to ask about the name or identity of one person or several people
예시들
Who is helping you with your homework?
누가 너의 숙제를 도와주고 있니?
02
누구, 그 사람
used to refer to people or animals with names
예시들
I met a woman yesterday who knows how to play the piano.
어제 피아노를 칠 줄 아는 여자를 만났다.
03
누구, 그 사람
used to represent a person as the subject or object of verb or preposition in a sentence
예시들
We discovered who wrote the mysterious letter.
우리는 누가 신비한 편지를 썼는지 발견했습니다.
