Present perfect 8 - Pearson
it.pearson.com › content › damSi forma con il Present simpledell’ausiliarehaveseguito dal participio passatodel verbo principale. Forma affermativa soggetto ausiliare participio passato I / You / We / You / They have (’ve) arrived / eaten. He / She / (It)has (’s) Forma negativa soggetto ausiliare participio passato I / You / We / You / They have not (haven’t) sleptwell.