YOU SAID:

I think boxing is the best sport ever invented.

INTO JAPANESE

ボクシングは史上最高のスポーツだと思います。

BACK INTO ENGLISH

I think boxing is the best sport of all time.

INTO JAPANESE

私はボクシングが史上最高のスポーツだと思います。

BACK INTO ENGLISH

I think boxing is the best sport of all time.