Lección 10: The present perfect continuous

Usamos el present perfect continuous para hablar de una acción que ocurre durante un período de tiempo. Por ejemple, ese período puede durar hasta el presente.
I 've been waiting for you all morning.--> He estado esperándote toda la mañana. (Empezó en el pasado y se trata de un período de tiempo que dura hasta el presente.)

ESTRUCTURA

have+been+ ing form

AFFIRMATIVE                              NEGATIVE                               QUESTION

I have been waiting                    I have not/ haven't been waiting            Have I been waiting?
You have been waiting              You have not/ haven't been waiting       Have you been waiting?
He/she/it has been waiting         He/she/It has not/ hasn't been waiting    Has he/she/It been waiting?

We have been waiting              We have not/ haven't been waiting         Have we been waiting?
You have been waiting             You have not/ haven't been waiting        Have you been waiting?
They have been waiting            They have not/ haven't been waiting       Have they been waiting?


USOS

• Acciones durante un período de tiempo que nos lleva hasta el presente. I 've been waiting for you all morning.--> He estado esperándote toda la mañana.
• Acciones repetidas que duran hasta ahora. She's been playing the guitar since she was 4. -->Ella ha estado tocando la guitarra desde que tenia 4 años.
• Acciones que acaba justo antes del presente. I've been swimming. -->He estado nadando.

PRÓXIMA LECCIÓN: The past perfect continuous.