약속은

In a sentence

• 약속은 지키는 것이 중요합니다.

  Keeping promises is important.

  The word '약속은' is used as the subject of the sentence, emphasizing promises as the focus of the importance being discussed.

• 친구와 한 약속은 절대 잊지 않을게요.

  I will never forget the promise I made with my friend.

  Here, '약속은' specifies a particular promise made with a friend, highlighted for its enduring importance.

• 약속은 둘 사이의 신뢰를 보여줍니다.

  Promises show trust between two people.

  In this case, '약속은' generalizes promises as a concept, explaining their role in representing mutual trust.