YOU SAID:
Hello Sarah Do you think that I'm a very silly man?
INTO JAPANESE
こんにちはサラはあなたは非常に愚かな男だと思うか?
BACK INTO ENGLISH
Hi Sarah you are a stupid guy think?
INTO JAPANESE
こんにちはサラは愚かな男だと思いますか。
BACK INTO ENGLISH
Hi Sarah is stupid guy?
INTO JAPANESE
こんにちはサラは愚かな男ですか。
BACK INTO ENGLISH
Hi Sarah is stupid guy?
That didn't even make that much sense in English.