maintainable vs maintain

maintainable is an adjective but maintain is not an adjective.

Word	Noun	Adjective	Verb	Adverb
maintainable	No	Yes	No	No
maintain	No	No	Yes	No

maintainable (adjective)	maintain (adjective)
capable of being maintained

maintainable (verb)	maintain (verb)
	stick to correctly or closely
	state categorically
	state or assert
	support against an opponent
	maintain by writing regular records
	supply with necessities and support
	keep in safety and protect from harm, decay, loss, or destruction
	have and exercise
	maintain for use and service
	cause to continue in a certain state, position, or activity