YOU SAID:
Friends do not let friends become zombies!
INTO JAPANESE
友達はゾンビになることはできません!
BACK INTO ENGLISH
Friends can not become zombies!
INTO JAPANESE
友人はゾンビになることはできません!
BACK INTO ENGLISH
A friend can not become a zombie!
INTO JAPANESE
友人はゾンビになれません!
BACK INTO ENGLISH
My friend can not become a zombie!
INTO JAPANESE
私の友人はゾンビになれません!
BACK INTO ENGLISH
My friend can not be a zombie!
INTO JAPANESE
私の友人はゾンビになることはできません!
BACK INTO ENGLISH
My friend can not become a zombie!
INTO JAPANESE
私の友人はゾンビになれません!
BACK INTO ENGLISH
My friend can not be a zombie!
INTO JAPANESE
私の友人はゾンビになることはできません!
it is unlikely that this phrase will ever reach equilibrium