Past Perfect
I called Jim too late, he had already left.We were not able to get a hotel room because we had not booked in advance. I had never seen such a beautiful beach before I went to Kauai. 

I saw that everybody had aldery gone - я увидел, что все уже ушли
When had the telephone rang? - когда зазвонил телефон?
We had been working Hard and managed to finish the project in time - Мы упорно работали и смогли завершить проект вовремя
Past Perfect Contin
He left very tired When He came home as He had been playing volleyball-он чувствовал себя очень усталым, когда пришёл домой, так как играл в волейбол
Misha saw an incredible animal that had been chasing him - Миша увидел невероятнoе животное, которое преследовало его.
The darkness of the sky had not been alarming about the coming sunrise- Темнота небо не предвещалa Скорый рассвет.