[*] 488. The Participle expresses the action of the verb in the form of an Adjective, but has a partial distinction of tense and may govern a case.
[*] Note.--Thus the participle combines all the functions of an adjective with some of the functions of a verb. As an Adjective, it limits substantives and agrees with them in gender, number, and case (§ 286). As a Verb, it has distinctions of time (§ 489) and often takes an object.Distinctions of Tense in Participles