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To form the past perfect we use the auxiliary verb " had"
To form the past perfect we use the main verb in past simple
To form the past perfect we use the main verb in past participle
For regular and irregular verbs the past participle is the same as the past simple
We use the past perfect to talk about events in the past
We don't use the past perfect to talk about unreal situations
The past perfect help us to see which order events had
It is not posible to use specific times in the past perfect
Some times we use the past perfect to tell other people what happened.
We use the past perfect to show the order of two events in the past.
