Unit 10Versión en línea Unit 10 por English Laboratory 1 Present Perfect The present perfect is formed with the verb have + the past participle.El presente perfecto es formado con el verbo HAVE y el pasado participio. 2 Present Perfect Affirmative Sentences (Frases afirmativas)Sujeto + verbo auxiliar ("to have") + participio pasadoEg:I have called youShe has eaten alreadyYou have been here beafore 3 Present Perfect Negative Sentences (Frases negativas)Sujeto + verbo auxiliar ("to have") + "not" + participio pasadoI have not called PeterYou have not done thatShe has not been here before 4 Present Perfect Interrogative Sentences (Frases interrogativas)Verbo auxiliar ("to have") + sujeto + participio pasadoHave you been to a jazz club?Has he called home lately?Have they eaten dinner yet? 5 Present Perfect Short answers.Yes, Sujeto + Auxiliar have.No, Sujeto + not + Auxiliar have.Have you been to a jazz club?Yes, I haveHas he called home lately?No, He has not. 6 Present Perfect ContractionsI've = I haveYou've = you haveHe's = he hasShe's = she hasIt's = It hasWe've = we haveThey've = they haveHasn't = has notHaven't = have not 7 Present Perfect vs Simple past Use el Presente perfecto para un tiempo indefinido en el pasado.Have you ever eaten Moroccan Food?Use el pasado simple para un evento especifico el el pasado.I ate it once in Paris. 8 Present Perfect Use FOR with periods of timeFOR two weeksFOR a few monthsFOR several yearsFOR a long timeUse SINCE with the start of a timeSINCE 6:45SINCE Last weekSINCE 1997SINCE elementary school
