1. When I first met her, she had been working in the company for ten years.
2.I had not been waiting long when a taxi drew up.
3.She had been looking at the parcel for some time before she realized that it was for her mother.
4.Until/Up till then she had been living with her daughter.
5.When I first met her, she had been writing books for two years.
6.Until/Up till then she had been speaking with her boss.
7.I had not been staying long when my mom came in.
8.My sister had not been waiting long when a bus drew up.
9.Until/Up till then he had been plying basketball with his friends.
10.When I first came in this house, she had been staying for three years.
11.He had been mentioning your name to me.
12.He was very tired. He had been working all day.
13.I asked where they had been staying all those days.
14.She had been cleaning the office, so we had to wait outside.
15.He gave up smoking last year. He’d been smoking for thirty years.
16.I had been waiting for her before she came in.