YOU SAID:
i have 2 cats that are black
INTO JAPANESE
私は黒い猫を2匹飼っています
BACK INTO ENGLISH
I have two black cats
INTO JAPANESE
黒猫が2匹います
BACK INTO ENGLISH
There are two black cats
INTO JAPANESE
2匹の黒猫がいます
BACK INTO ENGLISH
I have two black cats
INTO JAPANESE
黒猫が2匹います
BACK INTO ENGLISH
There are two black cats
INTO JAPANESE
2匹の黒猫がいます
it is unlikely that this phrase will ever reach equilibrium