Forming the past perfect
Examples: to decide
| Affirmative | Negative | Interrogative |
| I had decided | I hadn’t decided | Had I decided? |
| You had decided | You hadn’t decided | Had you decided? |
| She had decided | She hadn’t decided | Had she decided? |
| We had decided | We hadn’t decided | Had we decided? |
| They had decided | They hadn’t decided | Had they decided? |