휴대전화

In a sentence

• 나는 새 휴대전화를 샀어요.

  I bought a new mobile phone.

  Here, '휴대전화' is used as a direct object to indicate the item purchased, showing its noun form usage.

• 휴대전화를 잃어버려서 전화를 받고 싶어도 못 받았어요.

  Since I lost my mobile phone, I couldn't answer calls even if I wanted to.

  In this sentence, '휴대전화' is referenced as the subject of the action of being lost, exhibiting its role in describing possessions.

• 휴대전화로 친구에게 문자를 보냈습니다.

  I sent a message to my friend using my mobile phone.

  Here, '휴대전화' is used as an instrumental case (with '로') to indicate the means by which the action of sending a message was performed.