YOU SAID:
A stupid monkey washed away his bananas
INTO JAPANESE
愚かな猿がバナナを洗い流した
BACK INTO ENGLISH
A stupid monkey washed away the banana
INTO JAPANESE
バナナを洗い流した愚かな猿
BACK INTO ENGLISH
a foolish monkey washing away a banana
INTO JAPANESE
バナナを洗い流す愚かな猿
BACK INTO ENGLISH
a foolish monkey washing away a banana
That didn't even make that much sense in English.