들은

In a sentence

• 친구들이 들은 음악이 아주 아름다웠어요.

  The music that the friends listened to was very beautiful.

  Here, '들은' is derived from the verb '듣다' (to listen) and functions as a noun modifier in the past tense, meaning 'listened to'.

• 그는 사람들이 이야기한 소문을 잘 들은 것 같아요.

  It seems he attentively listened to the rumors that people discussed.

  In this sentence, '들은' modifies '이야기한 소문', indicating that the action of listening was completed in the past.

• 제가 어릴 때 들은 이야기는 아직도 기억나요.

  I still remember the stories I heard when I was young.

  Here, '들은' modifies '이야기' (stories), emphasizing stories heard in the past, showing use as a past-tense descriptor.