The Present Perfect Tense - How to form
We make the Present Perfect tense with the correct form of the auxiliary verb have (have/has) and the third form (past participle) of the mail verb.
To form the past participle of the regular verbs, we add ed to the infinitive
.
Examples:
I have worked as a secretary for two years.
Have you ever visited the Disneyland?
The film hasn't started yet.