Respuestas
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)
irregulares:
He has read the book that you gave me yesterday. (El ha leído el libro que me diste ayer)
She has spoken with him several times. (Ella ha hablado con él varias veces)
We have lent money to you many times. (Nosotros te hemos prestado dinero muchas veces)
They have lost my book. (Ellos han perdido mi libro)
He has forgotten what I said. (Él ha olvidado lo que dije)