사람들이다

In a sentence

• 이곳에 있는 사람들이다.

  These are the people who are here.

  In this sentence, '사람들이다' is used to identify a specific group of people, emphasizing their presence at the referenced location.

• 그들은 정말 친절한 사람들이다.

  They are very kind people.

  Here, '사람들이다' describes the nature of a group, affirming them as people with a specific trait—kindness.

• 우리는 함께 일하는 사람들이다.

  We are people who work together.

  In this case, '사람들이다' serves to classify the subject as a group with a shared activity or identity—working together.