について尋ねた

asked about

→ に
phrase Rare #27,376
asked about Used to say someone asked about a topic or person; 尋ねた is the past form of 尋ねる, “to ask.”
JA: 彼女は私の家族について尋ねた。
EN: She asked about my family.

彼を知らなかったので、私は妹に彼の仕事について尋ねた。

I didn’t know him, so I asked my younger sister about his job.

私は彼に彼の書いた新しい本について尋ねた。

I asked him about the new book he had written.

彼らは彼の過去の経験について尋ねた。

They asked him about his past experiences.

私はトムに彼の新しい本について尋ねた。

I asked Tom about his new book.

彼は私の新しい仕事について尋ねた。

He asked about my new job.