YOU SAID:

The dog and the cat were friends

INTO JAPANESE

犬と猫は友達だった

BACK INTO ENGLISH

The dog and the cat were friends.

INTO JAPANESE

犬と猫は友達でした。

BACK INTO ENGLISH

Dogs and cats were friends.

INTO JAPANESE

犬と猫は友達でした。

BACK INTO ENGLISH

Dogs and cats were friends.