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We already have been breakfast.
They have been living here since January.
We have been waiting on the platform since three o'clock.
She has been writing letters all morning, but I havn't started to write any yet.
How long have you been staying in that old hotel ?
They have been working in the same hotel for 20 years now.
I have been shoping all the morning, but I havn't buy anything yet.
He has writing a book for the last six months, but maked very little progress so far.
He has been in prison for a year.
We have been fishing for two hours now.
How many times have you been going to the Cinema this week ?
I havn't saw him today, but he has been telling mary that he'd be in for dinner.
I have been teaching hundreds of students, but I never met such a hopeful class as this.
It has been raining all day, I wonder when it stop.
Comments  
We have already had breakfast. ( no 'been' here, otherwise I`d ask you - are you a breakfast?)
I have been shoping all the morning, but I havn't bought anything yet.
He has been writing a book for the last six months, but has maked very little progress so far.
How many times have you been to the Cinema this week ? (no 'going' here)
I havn't seen him today, but he has been telling Mary ( She must be really bothered by him. Is he saying the same thing over and over again? I`d rather say he has told Mary ) that he'd be in for dinner.
I have been teaching hundreds of students, but I have never met such a hopeful class as this.
It has been raining all day, I wonder when it will stop.
Nashira NashWe have already had breakfast. ( no 'been' here, otherwise I`d ask you - are you a breakfast?)
Nashira NashI havn't seen him today, but he has been telling Mary ( She must be really bothered by him. Is he saying the same thing over and over again? I`d rather say he has told Mary ) that he'd be in for dinner.
Really, you all right
I'm sorry, I know that [Tenses] still confused for me, but with many exercises I'll be a good student.

Thank you Nashira