YOU SAID:

you are the most stupid person that has ever lived on this earth

INTO JAPANESE

あなたはこの地球上にこれまで生きた中で最も愚かな人間です

BACK INTO ENGLISH

you are the stupidest human being that ever lived on this earth

INTO JAPANESE

あなたはこの地球上に生きた中で最も愚かな人間です

BACK INTO ENGLISH

you are the stupidest person to ever live on this earth

INTO JAPANESE

あなたはこの地球上で生きてきた中で最も愚かな人間です

BACK INTO ENGLISH

you are the stupidest person to ever live on this earth