YOU SAID:

Hey, why don’t we play together

INTO JAPANESE

ねえ、一緒に遊んでみませんか

BACK INTO ENGLISH

Hey, why do n’t you play with me?

INTO JAPANESE

ねえ、なぜ私と一緒に遊んでみませんか？

BACK INTO ENGLISH

Hey, why don't you play with me?

INTO JAPANESE

ねえ、どうして私と遊んでみませんか？

BACK INTO ENGLISH

Hey, why don't you play with me?