신원에

In a sentence

• 그는 신원에 대해 질문을 받았다.

  He was asked questions about his identity.

  '신원에' in this sentence refers to 'identity,' specifically as the subject of questions being posed. It is part of the prepositional phrase '신원에 대해,' meaning 'about identity,' indicating the topic of discussion.

• 신원에 걱정이 많아 보였다.

  He seemed to have a lot of concerns about his identity.

  Here, the word '신원에' pertains to the notion of 'identity,' here expressing the subject of concern. The phrase '신원에 걱정이' suggests worry related to one's identity.

• 그녀는 신원에 대해 치밀하게 조사했다.

  She conducted a detailed investigation about the identity.

  In this context, '신원에' is part of the expression '신원에 대해,' referring to 'about identity.' It indicates that the investigation is focused on the subject of identity.