子供のころ、よく

when I was a child, often

→ 子供
phrase Rare #41,077
when I was a child, often Used to describe something that happened frequently during someone's childhood. The subject is understood from context and may be different from the speaker.
JA: 子供のころ、よく公園で遊びました。
EN: When I was a child, I often played in the park.

私は子供のころ、よく釣りにいっていた

When I was a child, I often went fishing.

トムさんのお家トムさんの子供のころ、よく引っ越しました

Tom’s family moved often when he was a child.

彼は子供のころ、よくここに来たかもしれない

He may have often come here when he was a child.