YOU SAID:

And I would have stayed up with you all night had I known how to save a life.

INTO JAPANESE

私は人生を救う方法を知っていたので、一晩中あなたと一緒に過ごしたでしょう。

BACK INTO ENGLISH

Because I knew how to save my life, I would have stayed with you all night.

INTO JAPANESE

私は私の人生を救う方法を知っていたので、私は一晩中あなたと一緒にいたでしょう。

BACK INTO ENGLISH

Because I knew how to save my life, I would have stayed with you all night.