YOU SAID:

you have to get a cat

INTO JAPANESE

あなたは猫を取得する必要があります

BACK INTO ENGLISH

You need to get a cat

INTO JAPANESE

猫を飼う必要がある

BACK INTO ENGLISH

I need to keep a cat

INTO JAPANESE

猫を飼う必要がある

BACK INTO ENGLISH

I need to keep a cat