YOU SAID:
does he know that he ate my sandwich in the rapper
INTO JAPANESE
彼はラッパーで私のサンドイッチを食べたことを知ってください。
BACK INTO ENGLISH
He should know that ate my sandwich in wrapper.
INTO JAPANESE
彼はラッパーで私のサンドイッチを食べたことを知るべきであります。
BACK INTO ENGLISH
He should know that ate my sandwich in wrapper.
That didn't even make that much sense in English.