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Participle
form the passive voice. In English, participles are also associated with periphrastic verb forms (continuous and perfect) and are widely used in adverbial[...]
https://en.wikipedia.org/wiki/Participle
Perfect (grammar)
is now ready). The word perfect in this sense means "completed" (from Latin perfectum, which is the perfect passive participle of the verb perficere "to[...]
https://en.wikipedia.org/wiki/Perfect_(grammar)
Future perfect
future and the perfect infinitive of the main verb (which consists of the infinitive of the auxiliary verb have and the past participle of the main verb)[...]
https://en.wikipedia.org/wiki/Future_perfect