Present
| I | curve |
| You | curve |
| She | curves |
| We | curve |
| They | curve |
Past
| I | curved |
| You | curved |
| She | curved |
| We | curved |
| They | curved |
Perfect
| I | have | curved |
| You | have | curved |
| She | has | curved |
| We | have | curved |
| They | have | curved |
Future
| I | will | curve |
| You | will | curve |
| She | will | curve |
| We | will | curve |
| They | will | curve |
Past Perfect
| I | had | curved |
| You | had | curved |
| She | had | curved |
| We | had | curved |
| They | had | curved |
Future Perfect
| I | will | have | curved |
| You | will | have | curved |
| She | will | have | curved |
| We | will | have | curved |
| They | will | have | curved |
Present - Conditional
| I | would | curve |
| You | would | curve |
| She | would | curve |
| We | would | curve |
| They | would | curve |
Perfect - Conditional
| I | would | have | curved |
| You | would | have | curved |
| She | would | have | curved |
| We | would | have | curved |
| They | would | have | curved |