I am sure if they mean the same. If there are some differences between them, what are those? When and how to use each of them? Thanks.

  • 3
    why do you think they mean the same?
    – Tang Ho
    Apr 24, 2020 at 4:17

1 Answer 1


They don't mean the same.

  • "你去干嘛?" means "What are you going to do?" or maybe "Why are you going?" depending on the context.

  • "你去吗?" means "Are you going?"


A: 我出去一会 = I'm leaving for a while. B: 你去干嘛? = What are you going to do?

A: 我去开会了 = I'm going to attend the meeting. B: 这会是给经理开的, 你去干嘛? = The meeting is intended for managers. Why are you going?

A: 我要去吃午饭, 你去吗 = I'm leaving for lunch. Are you going (with me)?

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