YOU SAID:
I have a plentiful cat
INTO JAPANESE
私は豊富な猫がいる
BACK INTO ENGLISH
I have plenty of cats
INTO JAPANESE
私にはたくさんの猫がいる
BACK INTO ENGLISH
I have lots of cats
INTO JAPANESE
私にはたくさんの猫がいる
BACK INTO ENGLISH
I have lots of cats
That didn't even make that much sense in English.