YOU SAID:
I have nutella on my bananas
INTO JAPANESE
バナナにヌテッラがあります
BACK INTO ENGLISH
Nutella is on the banana
INTO JAPANESE
ヌテラはバナナの上にあります
BACK INTO ENGLISH
Nutella is on a banana
INTO JAPANESE
ヌテラはバナナの上にあります
BACK INTO ENGLISH
Nutella is on a banana
That didn't even make that much sense in English.