YOU SAID:

This is the most fun ive ever had, ah!

INTO JAPANESE

これは今までで最も楽しいアイブです、ああ！

BACK INTO ENGLISH

This is the most fun Ive ever, oh!

INTO JAPANESE

これは私が今までで最も楽しいです、ああ！

BACK INTO ENGLISH

This is the most fun I've ever had, oh!

INTO JAPANESE

これは私が今までに経験した中で最も楽しいです、ああ！

BACK INTO ENGLISH

This is the most fun I have ever experienced, oh!

INTO JAPANESE

これは私が今まで経験した中で最も楽しいです、ああ！

BACK INTO ENGLISH

This is the most fun I have ever experienced, oh!