Verbos en ingles

Special verbs in the Past Perfect
|1) have as a full verb ||affirmative sentence |negative sentence |question |
|alle forms (I, you, he, she, it, we, they):|
|He had had a book. |He had not had a book.|Had he had a book? |

|2) be as a full verb|
|affirmative sentence |negative sentence |question |
|all forms (I, you, he, she,it, we, they): |
|He had been to Britain. |He had not been toBritain. |Had he been to Britain? |

|3) do as a full verb|
|affirmative sentence |negative sentence |question|
|all forms (I, you, he, she, it, we, they): |
|He had done an exercise.|He had not done an exercise. |Had he done an exercise? |

NOTE:
We sometimes use short/contracted forms for had with affirmative or...