않은데

In a sentence

• 나는 축구를 좋아하지 않은데 다른 스포츠는 좋아해요.

  I don't like soccer, but I like other sports.

  In this sentence, '않은데' is used to contrast the dislike of soccer with the liking of other sports.

• 그는 문제를 해결하지 않은데 이유를 말하지 않아요.

  He hasn't solved the issue, yet he doesn't explain the reason.

  Here, '않은데' highlights the unresolved status of the problem and creates a connection with the lack of explanation.

• 이 책은 재미있지 않은데 읽어야 해서 힘들어요.

  This book isn't interesting, but I need to read it, so it's challenging.

  In this example, '않은데' expresses a drawback about the book and adds context to the difficulty in reading it.