
To form past perfect tense:
| Type of sentence | Verb | Examples |
|---|---|---|
| Affirmative | had + past participle | She had invited me for dinner. |
| Negative | hadn't + past participle | Jane hadn’t gone to school. |
| Interrogative | had + subject + past participle | Had they arrived for the game? |
For more information on past participle, click here.
Use:
| To express | Examples |
|---|---|
| Sequence of events happened in the past. | We had left the party before they arrived. |
| A condition with its result. | If I had slept on time, I would have reached the event on time. |
| An event occurred short time before (used with 'just') | The doctor had left for the day just before I arrived. |