YOU SAID:
what am i supposed to do, when the best part of me was with you
INTO JAPANESE
私の最高の部分があなたと一緒にいたとき、私は何をすべきですか
BACK INTO ENGLISH
What should I do when the best part of me is with you
INTO JAPANESE
私の一番いい部分があなたと一緒にいるとき、私はどうすればいいですか
BACK INTO ENGLISH
What should I do when the best part of me is with you
That didn't even make that much sense in English.