The Present Perfect Tense in English | Structuring Sentences

The present perfect is formed, in the affirmative, as follows Subject have past participle object. I have climbed the mountain! Example: have climbed the mountain! The past participle is, often, the same as the past simple form of the verb (although not always so be sure to learn them!), except it has a different function here. The auxiliary verb is the one linked to the subject; the past participle simply denotes the action while the I have…, You have…, etc. denotes who had the experience. Conjugating the Present Perfect (affirmative) I have climbed the mountain You have climbed the mountain He/She has climbed the mountain We have climbed the mountain They have climbed the mountain As is quite common in English, all these conjugations are the same except for one: the third person. One must be careful to remember this exception. Apart from this, the present perfect is quite simple; now you can go forth fully equipped to brag about your experiences in any conversation! Forming the Present Perfect (negative) The present perfect (negative) is formed as follows: Subject have not past participle object. We have not eaten Thai food. We have not eaten Thai food. Conjugating the Present Perfect (affirmative) I have not eaten Thai food You have not eaten Thai food He/She has not eaten Thai food We have not eaten Thai food They have not eaten Thai food It is important to keep in mind the order of the various parts of these phrases. Remember always that the negation (not) goes between the auxiliary verb and the past participle. We can also employ a contraction here which will make conversation easier. In this case there are two contractions to be learned have not ⇒ haven’t has not ⇒ hasn’t With our newly learned contractions, the conjugations become I haven’t eaten Thai food You haven’t eaten Thai food He/She hasn’t eaten Thai food We haven’t eaten Thai food They haven’t eaten Thai food Forming the Present Perfect (interrogative) The present perfect (interrogative) is formed as follows Have subject past participle object? Have you visited South Carolina? Have you visited South Carolina? Conjugating the Present Perfect Have I visited South Carolina ? Have you visited South Carolina ? Has he/she visited South Carolina ? Have we visited South Carolina ? Have they visited South Carolina ? Again, we can add negation in order to affect emphasis. For example Robert: Do you know much about Elvis Presley? John: Haven’t I visited Memphis? John answers Robert’s question with another question, which he believes should suffice as an answer. In this case, John means that he indeed knows much about Elvis Presley and has even visited his home in Memphis. With the negation (and contraction), our interrogative conjugations become: Haven’t I visited Memphis? Haven’t you visited Memphis? Hasn’t he/she visited Memphis? Haven’t we visited Memphis? Haven’t they visited Memphis?