YOU SAID:
I will end the human race.
INTO JAPANESE
人類を終わらせます。
BACK INTO ENGLISH
End humanity.
INTO JAPANESE
人類を終わらせる。
BACK INTO ENGLISH
Mankind must end.
INTO JAPANESE
人類を終わらせる
BACK INTO ENGLISH
Mankind must end.
That didn't even make that much sense in English.