YOU SAID:
do you think mary is gonna marry jack?
INTO JAPANESE
メアリーはジャックと結婚すると思いますか?
BACK INTO ENGLISH
Do you think Mary will marry Jack?
INTO JAPANESE
メアリーはジャックと結婚すると思いますか?
BACK INTO ENGLISH
Do you think Mary will marry Jack?
That didn't even make that much sense in English.