A: What is he doing? 
    - 쟤 뭐하고 있어?

B: I don't know.
    - 몰라요.
    He sits around doing nothing.
    - 그는 빈둥거리기만 해요.

A: I'm going to talk to him.
    - 예기 좀 해야겠어.

B: Yes, give him a lecture.
    - 야단 좀 치세요.