“Participle: A verbal A that functions as an adjective. Present participles end in -ing (brimming); past participles typically end in -d or -ed (injured) or -en (broken) but may appear in other forms (brought, been, gone).”
Excerpted from: Strunk, William Jr., and E.B. White. The Elements of Style, Fourth Edition. New York: Longman, 2000.