없어서

In a sentence

• 나는 돈이 없어서 새 신발을 살 수 없었어요.

  I couldn't buy new shoes because I didn't have money.

  In this sentence, '없어서' indicates the reason (not having money) for the inability to purchase new shoes.

• 시간이 없어서 숙제를 다 못 했어요.

  I couldn't finish my homework because I didn't have enough time.

  Here, '없어서' is used to explain the lack of time as the cause for not completing the homework.

• 그가 없어서 회의를 시작하지 못했어요.

  We couldn't start the meeting because he was absent.

  In this sentence, '없어서' signifies the absence of a person as the reason for the delay in starting the meeting.