Past perfect, form
The Past Perfect tense in English is composed of two parts: the past tense of the verb tohave (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? |
Example: to decide, Past perfect
| Affirmative | Negative | Interrogative |
|---|---|---|
| I had decided | I hadn't decided | Had I decided? |
| You had decided | You hadn't decided | Had you decided? |
| He, she, it had decided | He hadn't decided | Had she decided? |
| We had decided | We hadn't decided | Had we decided? |
| You had decided | You hadn't decided | Had you decided? |
| They had decided | They hadn't decided | Had they decided? |
Past perfect, function
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. It does not matter which event is mentioned first - the tense makes it clear which one happened first.
In these examples, Event A is the first or earliest event, Event B is the second or latest event:
| Event A | Event B |
|---|---|
| John had gone out | when I arrived in the office. |
| I had saved my document | before the computer crashed. |
| When they arrived | we had already started cooking |
| He was very tired | because he hadn't slept well. |
