1. in active voice sentences with perfect tenses used [have/has/had + been]:
I have been here for ages.
She has been in New York ever since she changed her job.
We have been working on this project for a fortnight now.
Natan had been to Rome twice before he went there for the third time.
2. in passive voice sentences with perfect tenses used [have/has/had +been + verb-en]:
They have been sacked.
Pat has been arrested.
I had been interviewed many times before I got that job.