YOU SAID:
Omg my cats eating my friends cousins
INTO JAPANESE
私の猫が私の友達のいとこを食べている
BACK INTO ENGLISH
my cat is eating my friend's cousin
INTO JAPANESE
私の猫は私の友達のいとこを食べています
BACK INTO ENGLISH
my cat is eating my friend's cousin
You've done this before, haven't you.