YOU SAID:

if i am able to eat five cats then i will buy four hotdogs

INTO JAPANESE

もし私が5匹の猫を食べることができれば、私は4匹のホットドッグを買うだろう

BACK INTO ENGLISH

If I could eat five cats, I would buy four hot dogs.

INTO JAPANESE

もし猫を5匹食べれば、ホットドッグを4匹買うだろう。

BACK INTO ENGLISH

If I ate five cats, I would buy four hot dogs.

INTO JAPANESE

もし私が5匹の猫を食べたら、ホットドッグを4匹買うだろう。

BACK INTO ENGLISH

If I ate five cats, I would buy four hot dogs.