YOU SAID:
My friend is the best human being on this planet
INTO JAPANESE
私の友人はこの惑星で最もよい人間です。
BACK INTO ENGLISH
A friend of mine is on this planet's best man.
INTO JAPANESE
私の友人はこの惑星の最高の男です。
BACK INTO ENGLISH
A friend of mine is the best guy on this planet.
INTO JAPANESE
私の友人は、この地球で最高の男です。
BACK INTO ENGLISH
A friend of mine is the best man on this earth.
INTO JAPANESE
私の友人は、この地球上最高の男です。
BACK INTO ENGLISH
A friend of mine is the best man on this earth.
You've done this before, haven't you.