govern vs government

govern is not a noun while government is a noun.

Word	Noun	Adjective	Verb	Adverb
govern	No	No	Yes	No
government	Yes	No	No	No

govern (noun)	government (noun)
	the act of governing; exercising authority
	(government) the system or form by which a community or other political unit is governed
	the study of government of states and other political units
	the organization that is the governing authority of a political unit

govern (verb)	government (verb)
exercise authority over; as of nations
direct or strongly influence the behavior of
bring into conformity with rules or principles or usage; impose regulations
require to be in a certain grammatical case, voice, or mood