私が帰るまで

until I return

→ 私
phrase Rare #34,406
until I return 私が means “I,” 帰る means “return” or “go home,” and まで means “until.” With に added as 私が帰るまでに, it means “by the time I return.”
JA: 私が帰るまで、ここで待っていてください。
EN: Please wait here until I return.

留守中にもし彼がきたら私が帰るまで待つように言ってください

If he comes while I’m out, please tell him to wait until I get back.

私が帰るまで必ずこれを仕上げておきなさい

Make sure you finish this by the time I get back.

彼は私に私が帰るまで待っていると言った

He told me that he would wait until I came back.

私が帰るまでここにいてください

Please stay here until I get back.

私が帰るまで私の家に着いたら自由に飲み物を召し上がってください

If you arrive at my house before I get back, please help yourself to something to drink.