것이어서

In a sentence

• 이 작품이 유일한 그의 유산인 것이어서 많은 사람들에게 소중하게 여겨집니다.

  This work is his only legacy, so it is considered precious by many people.

  Here, "것이어서" is used to indicate a reason or cause linked to the preceding statement, emphasizing the exclusivity of the subject.

• 문제가 너무 복잡한 것이어서 해결하는 데 시간이 걸릴 것입니다.

  The problem is too complicated, so it will take time to solve.

  In this sentence, "것이어서" is used to provide the reasoning behind the expected consequence related to the problem’s complexity.

• 그가 오늘 행사에 참석하지 않는 것이어서 모두가 놀랐습니다.

  His absence from today's event was unexpected, so everyone was surprised.

  "것이어서" here specifies the surprising circumstance of the subject’s action, indicating the subject as the unexpected cause for people's reaction.