YOU SAID:
Cats will be more clever.
INTO JAPANESE
猫はもっと賢くなるでしょう。
BACK INTO ENGLISH
Cats will be smarter.
INTO JAPANESE
猫はもっと賢くなります。
BACK INTO ENGLISH
Cats get smarter.
INTO JAPANESE
猫は賢くなる。
BACK INTO ENGLISH
Cats get smarter.
Okay, I get it, you like Translation Party.