Present perfec

El presente perfecto se usa para hablar de acciones que han ocurrido en periodos de tiempo que aún no han terminado o de cosas que tienen una relevancia en el momento actual. Vamos a ver cómo se forma.

La teoría

El presente perfecto se forma colocando have (o has para la tercera persona del singular) delante del participio del verbo principal:

• I have seen a good movie this week. (La semana no ha terminado).
• We have had ham for dinner tonight. (La noche no ha terminado).
• She has listened to a great song this afternoon. (La tarde no ha terminado).

Es muy importante recordar que en inglés hablado, siempre que se podemos, contraemos have y has con el sujeto:

• I’ve seen a good movie this week.
• We’ve had ham for dinner tonight.
• She’s listened to a great song this afternoon.

he present perfect is used to talk about actions that have occurred in periods of time that have not yet finished or things that have relevance at the present time. Let's see how it is formed.
The theory
The present perfect is formed by placing have (or has for the third person singular) in front of the participle of the main verb:

• She has listened to a great song this afternoon. (The afternoon is not over).
• I have seen a good movie this week. (The week has not ended).
• We have had ham for dinner tonight. (The night is not over).

• She's listened to a great song this afternoon
It is very important to remember that in spoken English, whenever we can, we contract and have with the subject:
• I've seen a good movie this week.

• We've had ham for dinner tonight.




EXEMPLO

.I have worked (Yo he trabajado)          You have worked (Tú has trabajado)       He has worked (Él ha trabajado)           She has worked (Ella ha trabajado)           It has worked (Eso ha trabajado)            We have worked (Nosotros hemos trabajado)                                               You have worked (Usted ha trabajado) They have worked (Ellos han trabajado)                 

Ejmplos con verbos regulares:

I have worked for my uncle. (Yo he trabajado para mi tío)
She has finished her homework. (Ella ha terminado su tarea)
I have to go, we have talked for more than two hours. (Yo me tengo que ir, nosotros hemos hablado por más de dos horas)
We have visited them once a week for the last year. (Nosotros los hemos visitado una vez por semana durante el último año)
He has returned my car at last. (El ha regresado mi automóvil al fin)
It has rained once a week for the last month. (Ha llovido una vez a la semana durante el último mes)
They have completed the project. (Ellos han completado el proyecto