Respuestas
Respuesta:
I have been watching tv for three hours
He estado viendo la tele durante tres horas
La diferencia con el present perfect es que el presente perfect continuous marca el énfasis en la acción en desarrollo, mientras que el present perfect la contempla como acabada.
I have watched tv for three hours.
He visto tele durante tres horas (ya he terminado).
I have been watching tv for three hou
Respuesta:
have been working (Yo he estado trabajando)
You have been working (Tú has estado trabajando)
He has been working (Él ha estado trabajando)
She has been working (Ella ha estado trabajando)
It has been working (Eso ha estado trabajando)
We have been working (Nosotros hemos estado trabajando)
You have been working (Usted ha estado trabajando)
They have been working (Ellos han estado trabajando)
Explicación: