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Past perfect = Had + P.P. I had given him some money
He said thanks after I had given him some money.
Past perfect countinuos = Had + been + P.P.
John said "I have been working on it for three days"
John said that he had been working on it for three days.
1. we use the past perfect to show that one action happened before anther in the past, and the first action finished before the second action started.
2. we often use the past prefect with because t explain past situation.
3. to show that two actions happened at the same time, we use the past simple.
It’s correct use that in past perfect ? if yes please give me example :
Past perfect and Past prefect continuous 
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