YOU SAID:
He never gonna be President now!
INTO JAPANESE
彼は決して今社長になる!
BACK INTO ENGLISH
He will never be President right now!
INTO JAPANESE
彼は今社長になることはありません!
BACK INTO ENGLISH
Not that he would be President right now!
INTO JAPANESE
彼は今大統領となる!
BACK INTO ENGLISH
He would now be President!
INTO JAPANESE
今、彼は社長になる!
BACK INTO ENGLISH
Now, he will be the President!
INTO JAPANESE
今、彼は大統領になります!
BACK INTO ENGLISH
Now, he will be the President!
That didn't even make that much sense in English.