modifiable vs modify

modifiable is an adjective but modify is not an adjective.

Word	Noun	Adjective	Verb	Adverb
modifiable	No	Yes	No	No
modify	No	No	Yes	No

modifiable (adjective)	modify (adjective)
capable of being modified in form or character or strength (especially by making less extreme)

modifiable (verb)	modify (verb)
	make less severe or harsh or extreme
	add a modifier to a constituent
	cause to change; make different; cause a transformation