YOU SAID:

Cats exist right now.

INTO JAPANESE

猫は今も存在しています。

BACK INTO ENGLISH

Cats still exist.

INTO JAPANESE

猫はまだいる。

BACK INTO ENGLISH

I still have the cat.

INTO JAPANESE

私はまだ猫を飼っています。

BACK INTO ENGLISH

i still have a cat

INTO JAPANESE

私はまだ猫を飼っています

BACK INTO ENGLISH

i still have a cat