inference vs infer

inference is a noun but infer is not a noun.

Word	Noun	Adjective	Verb	Adverb
inference	Yes	No	No	No
infer	No	No	Yes	No

inference (noun)	infer (noun)
the reasoning involved in drawing a conclusion or making a logical judgment on the basis of circumstantial evidence and prior conclusions rather than on the basis of direct observation

inference (verb)	infer (verb)
	reason by deduction; establish by deduction
	believe to be the case
	guess correctly; solve by guessing
	conclude by reasoning; in logic
	draw from specific cases for more general cases