YOU SAID:
never eat cheese before noon
INTO JAPANESE
正午前にチーズを決して食べない
BACK INTO ENGLISH
I will never eat cheese at noon
INTO JAPANESE
私は正午にチーズを決して食べない
BACK INTO ENGLISH
I never eat cheese at noon
INTO JAPANESE
私は正午にチーズを決して食べません
BACK INTO ENGLISH
I never eat cheese at noon
That didn't even make that much sense in English.