Present Perfect - Formação

The Present Perfect Tense - How to form

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We make the Present Perfect tense with the correct form of the auxiliary verb have (have/has) and thethird 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. Tip! You may want to visit The English Irregular Verbs pages to learn how we form the past simple (second form) and past participles (third form) of some English verbs.. Present Perfect - Positive Sentences I 've been to Moscow. You 've finished the exercise. He 's just gone home. She 's already had a holiday this year. It 's broken! We 've seen this film before. They 've bought a new car. Present Perfect - Negative Sentences I haven't been abroad yet. You haven't answered my question. He hasn't been home for five years. She hasn't found a new job. It hasn't finished yet. We haven't worked on a farm. They haven't seen each other for ages. Present Perfect - Yes/No Questions Have I ever done it before? Have you been to the cinema recently? Has he worked here long? Has she already sent the fax? Has it ever been in a crash? Have we done it right? Have they gone home yet? Present Perfect - Information Questions What have I done? How long have you been here? How many times has he been married? What countries has she visited? Where has it been? How long have we been together? Where have they worked? http://www.eclecticenglish.com/grammar/PresentPerfect1B.html