A: Do you remember the trainee teacher?
    - 교생선생님 기억나?

B: His name started with kim…….
    - 김…….으로 시작했는데.

A: He was a great teacher. What was his name?
    - 좋은 선생님 이였는데, 이름이 뭐였더라?

B: It's been a while that I can barely remember.
    - 오래 돼서 기억이 가물가물 해.