tending vs tend

tending is a noun but tend is not a noun.

Word	Noun	Adjective	Verb	Adverb
tending	Yes	Yes	No	No
tend	No	No	Yes	No

tending (noun)	tend (noun)
the work of providing treatment for or attending to someone or something

tending (adjective)	tend (adjective)
(usually followed by `to') naturally disposed toward

tending (verb)	tend (verb)
	have care of or look after
	manage or run
	have a tendency or disposition to do or be something; be inclined