これが私が

this is what I...

→ 此れ
phrase Rare #21,218
this is what I... Introduces something connected to an action, need, experience, or description involving the speaker. The phrase is usually followed by a noun or the rest of a relative clause.
JA: これが私が一番好きな映画です。
EN: This is my favorite movie.

これが私がなくした時計

This is the watch I lost.

これが私が若い頃に住んでたです

This is the house I lived in when I was young.

これが私がここへ来た理由

This is why I came here.

これが私が子供時代を過ごしたです

This is the village where I spent my childhood.

これが私が遅れた理由です

This is why I was late.

これが私がずっと探していた帽子です

This is the hat I've been looking for.

これが私が生まれ育ったです

This is the house where I was born and raised.

これが私が子供の頃住んでいた家だ

This is the house I lived in when I was a child.

これが私が読める限界です

This is the limit of what I can read.