YOU SAID:
I'm not as dumb as I sound, I promise
INTO JAPANESE
私は思ったほど馬鹿ではない、約束する
BACK INTO ENGLISH
I promise, not as stupid as I thought
INTO JAPANESE
思ったほど愚かではなく、約束します
BACK INTO ENGLISH
I promise, not as stupid as I thought
That didn't even make that much sense in English.