Present
| I | dull |
| You | dull |
| She | dulls |
| We | dull |
| They | dull |
Past
| I | dulled |
| You | dulled |
| She | dulled |
| We | dulled |
| They | dulled |
Perfect
| I | have | dulled |
| You | have | dulled |
| She | has | dulled |
| We | have | dulled |
| They | have | dulled |
Future
| I | will | dull |
| You | will | dull |
| She | will | dull |
| We | will | dull |
| They | will | dull |
Past Perfect
| I | had | dulled |
| You | had | dulled |
| She | had | dulled |
| We | had | dulled |
| They | had | dulled |
Future Perfect
| I | will | have | dulled |
| You | will | have | dulled |
| She | will | have | dulled |
| We | will | have | dulled |
| They | will | have | dulled |
Present - Conditional
| I | would | dull |
| You | would | dull |
| She | would | dull |
| We | would | dull |
| They | would | dull |
Perfect - Conditional
| I | would | have | dulled |
| You | would | have | dulled |
| She | would | have | dulled |
| We | would | have | dulled |
| They | would | have | dulled |