YOU SAID:

if a cat and a dog, should it be a ferret

INTO JAPANESE

猫、犬、フェレットをするそれ必要があります。

BACK INTO ENGLISH

To cats, dogs and ferrets must be it.

INTO JAPANESE

猫、犬、フェレット必要がありますそれ。

BACK INTO ENGLISH

There are cats, dogs and ferrets need it.

INTO JAPANESE

猫、犬、フェレット必要な。

BACK INTO ENGLISH

Cats, dogs, ferrets are required.

INTO JAPANESE

猫、犬、フェレットが必要。

BACK INTO ENGLISH

Cats, dogs and ferrets will need.

INTO JAPANESE

猫、犬、フェレットを必要があります。

BACK INTO ENGLISH

Cats, dogs and ferrets must be.

INTO JAPANESE

猫、犬、フェレットをする必要があります。

BACK INTO ENGLISH

Cats, dogs and ferrets must be.