끝나서는

In a sentence

• 영화가 끝나서는 집에 갔다.

  After the movie ended, I went home.

  Here, '끝나서는' is used to denote the completion of the movie (a temporal marker).

• 일이 끝나서는 같이 저녁을 먹자.

  After work ends, let’s have dinner together.

  '끝나서는' indicates the conclusion of work, suggesting what action follows.

• 행사가 끝나서는 참여자들과 대화를 나누었다.

  After the event ended, I had conversations with the participants.

  In this sentence, '끝나서는' highlights what occurs subsequently to the event's conclusion.