Convierta esta frases afirmativas en frases negativas!
He had been working all day, before he came home.
He had not been working all day, before he came home.
They have been living here since 2003.
They have not been living here since 2003.
She had been waiting for snow, before she knew how nice it is.
She had not been waiting for the first snow, before she knew how nice it is.
Last summer the sun had been shining for many days, and then the rain came.
Last summer the sun had not been shining for many days, then the rain came.
I have been sleeping all morning and I'm tired.
I have not been sleeping all morning and I'm tired.
He had been hoping for a better job, long before he got a good offer.
He had not been hoping for a better job, long before he got a good offer.
They have been doing nothing this morning.
They have not been doing nothing this morning.
We could have been travelling first class.
We could not have been travelling first class.
She had been having her exams right before, she went to France.
She had not been having her exams, right before she went to France.
We have been waiting for you here since ten, now it's twelve.
We have not been waiting for you since ten, now it's twelve.