The Past Perfect refers to a time earlier than before now. It is used to make it clear that one event happened before another in the past.
The Past Perfect is composed of twoparts:
[had + the past participle of the main verb]
|Subject |Had |Past participle ||We |had |decided... |
| | ||
| | | |
|Affirmative || |
|She |had |given. |
|Negative| | |
|We |hadn't |asked.|
|Interrogative | | |
|Had |they|arrived? |
|Interrogative negative |
|Hadn't|you |finished? |
She only understood the movie because she had read the book.
I had never seen such a beautifulbeach before I went to Kauai.
Kristine had never been to an opera before last night.
El Pasado Perfecto se utiliza para referirnos a una acción que tuvo lugar en un momento anterior a otra...