presupposition vs presuppose

presupposition is a noun but presuppose is not a noun.

Word	Noun	Adjective	Verb	Adverb
presupposition	Yes	No	No	No
presuppose	No	No	Yes	No

presupposition (noun)	presuppose (noun)
the act of presupposing; a supposition made prior to having knowledge (as for the purpose of argument)

presupposition (verb)	presuppose (verb)
	require as a necessary antecedent or precondition
	take for granted or as a given; suppose beforehand