she has always been proud of her appearance.
pride: verb, noun uncountable (except when talking about packs of lions)
prideful: adjective == full of pride
by V3 do you mean the present, past simple, and past participle?
if so then: proud prided prided
eg:Americans have prided Isreal as a template of democracy in the middle east.
however 'pride' is not very often used as a verb, usually we say "I am proud of...." using 'be' instead.