YOU SAID:
you are the most stupid person i know
INTO JAPANESE
あなたは私が知っている最も愚かな人です
BACK INTO ENGLISH
You are the most foolish person I know
INTO JAPANESE
あなたは私が知っている最も愚かな人です
BACK INTO ENGLISH
You are the most foolish person I know
That didn't even make that much sense in English.