Presente perfecto simpleAffirmativeI´ve practised He´s practised She´s practised It´s practised You´ve practised We´ve practised They´ve practised
NegativeI haven´t practisedHe hasn´t practised She hasn´t practised It hasn´t practised You haven´t practised We haven´t practised They haven´t practised
QuestionsHave I practised? Has he practised? Has she practised? Has it practised? Have you practised? Have we practised? Have they practised?
* algo que comenzó en el pasado y que continúa en el presente. I´ve worn glasses since I was seven. How long have you lived here? * experiencias vitales, cuando no se especifica cuándo tuvieron lugar. We´ve visited South America twice. Have you ever been on a motorbike? * algo que sucedió en el pasado y que tiene un efecto en el presente. I´ve forgotten their phone number. (I haven´t got their phone number now.)
!CUIDADO!* El past simple se utiliza con expresiones de tiempo y fechas; el present perfect, cuando no se menciona el momento o la fecha. He´s gone. He left yesterday. ´Have you done your homework?´ ´I did it last night.´* been y gone tienen significados diferentes. He´s been to Granada. (He went and came back.) He´s gone to Granada. (He´s still there.)
For and Sincefor He´s had a motorbike for two months. They´ve lived in Portugal for ten years. since He´s had a motorbike since his birthday. I´ve known my best friend since I was four. for y since se utilizan para expresar durante cuánto tiempo ha continuado una acción hasta el presente. * for se utiliza para hablar de un periodo de tiempo. I´ve been here for three days / a month / a year / a long time. * since se utiliza para hablar de un momento concreto en el tiempo. I´ve known how to surf since I was fifteen / since last summer / since I went to Cornwall.
Already, Just and yetalready They´ve already bought their Christmas presents. She´s already seen that film. just He´s just had his breakfast. I´ve just sent an e-mail to Mary. yet He hasn´thad lunch yet. Have you finished yet? * already y just se utilizan detrás de have ( has y delante del past participle. John has already finished the exam. She´s just left the house. * yet se coloca al final de las frases. Se utilize en oraciones negativas e interrogativas. Have you seen Harry Potter yet? I haven´t read the book yet.
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