YOU SAID:

you are the dumbest person i know

INTO JAPANESE

あなたは私が知っている最も愚かな人です

BACK INTO ENGLISH

You're the stupidest person I know.

INTO JAPANESE

あなたは私が知っている中で一番愚かな人よ

BACK INTO ENGLISH

You're the stupidest person I've ever known.

INTO JAPANESE

君は最高の人だ

BACK INTO ENGLISH

You're the best person I've ever known.

INTO JAPANESE

君は最高の人だ

BACK INTO ENGLISH

You're the best person I've ever known.