YOU SAID:

Harry potter was dancing while eating a banana because his suitcase was tiny

INTO JAPANESE

ハリーポッターはスーツケースが小さかったのでバナナを食べながら踊っていました

BACK INTO ENGLISH

Harry Potter had a small suitcase so he was dancing while eating bananas

INTO JAPANESE

ハリーポッターは小さなスーツケースを持っていたので、バナナを食べながら踊っていました

BACK INTO ENGLISH

Harry Potter had a small suitcase, so he was dancing while eating bananas

INTO JAPANESE

ハリーポッターは小さなスーツケースを持っていたので、バナナを食べながら踊っていました

BACK INTO ENGLISH

Harry Potter had a small suitcase, so he was dancing while eating bananas