YOU SAID:

bananas are the best things in the world if they don't have spiders on them

INTO JAPANESE

彼らはそれらにクモを持っていない場合、バナナは世界で最高のものです

BACK INTO ENGLISH

Bananas are the best in the world if they do not have spiders in them

INTO JAPANESE

彼らがそれらの中にクモを持っていないならば、バナナは世界で最高です

BACK INTO ENGLISH

Bananas are the best in the world if they do not have spiders in them