YOU SAID:
i have 1 dog and 3 cats
INTO JAPANESE
私は犬1匹と猫3匹を飼っています
BACK INTO ENGLISH
I have a dog and 3 cats
INTO JAPANESE
私は犬と猫を3匹飼っています
BACK INTO ENGLISH
I have 3 dogs and 3 cats
INTO JAPANESE
私は3匹の犬と3匹の猫を飼っています
BACK INTO ENGLISH
I have 3 dogs and 3 cats
You've done this before, haven't you.