Can you explain to me with examples what "verbi ausiliari" are and how to use them?

The ausiliari (auxiliary/supporting) verbs in Italian are: essere (to be) = io sono, tu sei, io fui, stato.avere (to have) = io ho, tu hai, io ebbi, avuto.The auxiliary verbs are used to support, as the name suggests, the other transitivi verbs ( with the use of avere) and intransitivi (with the use of essere) and build their complex tenses (like passato prossimo or trapassato prossimo); they're also used to build the passive form of active verbs (with the use of essere).Examples:Io sono andato a casa (I went home); the verb andare (to go) is intransitivo, so it requires the verb essere. Egli ha mangiato tardi (He ate late); the verb mangiare (to eat) is transitivo, so it requires the verb avere. Mara è stata colpita da un malore (Mara has been stricken with illness); the verb colpire (to hit/ to strike) is transitivo, so it requires the verb essere to make its passive form.