않지만

않지만

"않지만" means "but (does/do) not."

The word '않지만' is used here to negate the verb '피곤하다' (to be tired) and combine it with '하지만' (but), expressing a contrast in the statement.

나는 피곤하지 않았지만, 일찍 잠을 잤어요.

I wasn't tired, but I went to bed early.

'않지만' is used to negate '재미있다' (to be entertaining), showing contrast with the adjective '유익하다' (to be useful).

이 책은 재미는 없지만, 매우 유익해요.

This book is not entertaining, but it is very useful.

Here, '않지만' negates the verb '오다' (to come) and shows a concession to the subsequent clause.

그는 자주 오지 않지만, 올 때 항상 선물을 가져와요.

He doesn't come often, but he always brings a gift when he does.