I had yet started reading the book, when the phone rang.
yet
The singer was tired because she had toured for more than four months
had tourned
We had just arrived at the theatre when the famous actor had appeared.
had appeared.
They had already been signing autographs so they left.
had already been signing
It had been long time since we had last seen a decent film.
long time
The tickets had since sold out when she got to the box office.
since