Las siguientes oraciones están en afirmativa. Teniendo en cuenta los ejemplos y normas anterio-
res, páselas a negativa e interrogativa,
They have been talking for three hours.
I have been waiting for you for over an hour.
She has been studying English since she was 16.
He has been working at the bank since 2013.
We have been planning our vacation for over a month.
You have been watching television since 3 o'clock.
Respuestas a la pregunta
They haven't been talking for three hours.
Have they been talking for three hours?
I haven't been waiting for you for over an hour.
Have I been waiting for you for over an hour?
She hasn't been studying English since she was 16.
Has she been studying English since she was 16?
He hasn't been working at the bank since 2013.
Has he been working at the bank since 2013?
We haven't been planning our vacation for over a month.
Have we been planning our vacation for over month.
You haven't been watching television since 3 o'clock.
Have you been watching televesion since 3 o'clock?
Recordá que:
S+ have/has + been + V-ing
They have been learning English for 2 years.
S + have/has + not + been + V-ing They have not been learning English for 2 years.
Have/has + S + been + V-ing
Have they been learning English for 2 years?
espero haberte ayudado ^^