무슨

In a sentence

• 무슨 일이 있었나요?

  What happened?

  Here, '무슨' is used as an interrogative adjective asking about the type or nature of the event or occurrence.

• 무슨 책을 읽고 있나요?

  What book are you reading?

  Here, '무슨' is used to ask about a specific item or kind within the category of books.

• 무슨 이유로 그렇게 말했나요?

  For what reason did you say that?

  Here, '무슨' is inquiring about the reason or rationale behind the action.