0 the form of a verb that usually ends with ‘-ed’ For example ‘walked’ is the past participle of ‘walk’. -- participio passato
1 the form of a verb that is used with the verb ‘have’ to form perfect tenses, and with the verb ‘be’ to form passive sentences. Past participles are also sometimes used as adjectives, for example ‘injured’ as in ‘an injured shoulder’. -- participio passato
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Possiamo completarlo passo dopo passo, indipendentemente dalla lunghezza della strada, e non può essere completato, per quanto breve sia la strada, se non segni nemmeno la tua impronta.