YOU SAID:

This is the most fun thing to ever eat a cat.

INTO JAPANESE

これは猫を食べるのにこれまでで最も楽しいことです。

BACK INTO ENGLISH

This is the most fun thing I've ever had to eat a cat.

INTO JAPANESE

これは私が今まで猫を食べなければならなかった中で最も楽しいことです。

BACK INTO ENGLISH

This is the most fun I have ever had to eat a cat.

INTO JAPANESE

これは私が今まで猫を食べなければならなかった中で最も楽しいです。

BACK INTO ENGLISH

This is the most fun I have ever had to eat a cat.