YOU SAID:
You are the best cat in the universe and are going to eat a fat rat
INTO JAPANESE
あなたは宇宙で最高の猫で、太ったネズミを食べるつもりです
BACK INTO ENGLISH
You are the best cat in the universe and you are going to eat fat mice
INTO JAPANESE
あなたは宇宙で最高の猫であり、太ったネズミを食べるつもりです
BACK INTO ENGLISH
You are the best cat in the universe and will eat fat mice
INTO JAPANESE
あなたは宇宙で最高の猫であり、太ったネズミを食べるでしょう
BACK INTO ENGLISH
You are the best cat in the universe and will eat fat mice
That didn't even make that much sense in English.