YOU SAID:

Hey, want to go get some bananas?

INTO JAPANESE

ねえ、バナナを買いに行きたい？

BACK INTO ENGLISH

Hey, do you want to go buy bananas?

INTO JAPANESE

ねえ、あなたはバナナを買いに行きたいですか？

BACK INTO ENGLISH

Hey, do you want to go buy bananas?