YOU SAID:

Eat bananas don’t eat potatoes

INTO JAPANESE

バナナを食べるのはジャガイモを食べない

BACK INTO ENGLISH

Eating bananas doesn't eat potatoes

INTO JAPANESE

バナナを食べるとジャガイモは食べません

BACK INTO ENGLISH

If you eat bananas, you don't eat potatoes

INTO JAPANESE

バナナを食べるならじゃがいもは食べません

BACK INTO ENGLISH

If you eat bananas, you don't eat potatoes