YOU SAID:
Oh my god you are so ugly.
INTO JAPANESE
ああ、なんてことだ、あなたはとても醜い。
BACK INTO ENGLISH
Oh my god, you are so ugly.
INTO JAPANESE
ああ、なんてことだ、あなたはとても醜いです。
BACK INTO ENGLISH
Oh my god, you are so ugly.
That didn't even make that much sense in English.