verb vs verbal

verb is a noun but verbal is not a noun.

Word	Noun	Adjective	Verb	Adverb
verb	Yes	No	No	No
verbal	No	Yes	No	No

verb (noun)	verbal (noun)
a content word that denotes an action, occurrence, or state of existence
the word class that serves as the predicate of a sentence

verb (adjective)	verbal (adjective)
	relating to or having facility in the use of words
	tediously prolonged or tending to speak or write at great length
	of or relating to or formed from a verb
	of or relating to or formed from words in general
	communicated in the form of words
	expressed in spoken words