never vs ever

never and ever both are adverbs.

Word	Noun	Adjective	Verb	Adverb
never	No	No	No	Yes
ever	No	No	No	Yes

never (adverb)	ever (adverb)
not at all; certainly not; not in any circumstances; not ever; at no time in the past or future	at all times; all the time and on every occasion
	at any time
	(intensifier for adjectives) very