끝난

In a sentence

• 수업이 끝난 후에 친구들과 카페에 갔습니다.

  After the class ended, I went to the cafe with friends.

  Here, '끝난' acts as an adjective form of the verb '끝나다' (to end) and modifies '수업' (class), indicating that the class has finished.

• 끝난 일을 다시 생각하지 말고 앞으로 나아가세요.

  Do not dwell on things that have already ended and move forward.

  In this sentence, '끝난' describes '일' (things), emphasizing that these matters have come to an end and suggesting moving past them.

• 끝난 숙제를 선생님께 제출하세요.

  Submit the completed homework to the teacher.

  Here, '끝난' modifies '숙제' (homework), indicating that the homework has been finished or completed.