듣는지

In a sentence

• 그가 음악을 듣는지 확인해 주세요.

  Please check if he is listening to music.

  In this sentence, '듣는지' is used to form an indirect question, asking whether someone is listening to something.

• 친구가 내 말을 듣는지 궁금해요.

  I wonder if my friend is listening to what I say.

  Here, '듣는지' introduces a reported question or curiosity about someone paying attention or listening.

• 학생들이 강의를 잘 듣는지 확인할 필요가 있어요.

  It is necessary to check whether the students are listening well to the lecture.

  In this instance, '듣는지' is used to express the need to verify if listening is occurring effectively.