YOU SAID:
i'm a stupid guy with a stupid mouth and a stupid face.
INTO JAPANESE
私は愚かな口と愚かな顔を持つ愚かな男だ。
BACK INTO ENGLISH
I am a stupid man with a stupid mouth and a stupid face.
INTO JAPANESE
私は愚かな口と愚かな顔を持つ愚かな男です。
BACK INTO ENGLISH
I am a stupid man with a stupid mouth and a stupid face.
That didn't even make that much sense in English.