YOU SAID:

I don't know what i would do if you ever left me

INTO JAPANESE

あなたが私を離れた場合、私は何をするかわかりません

BACK INTO ENGLISH

I don't know what to do if you leave me

INTO JAPANESE

あなたが私を離れた場合、私は何をすべきかわかりません

BACK INTO ENGLISH

I don't know what to do if you leave me