Present
| I | testify |
| You | testify |
| She | testifies |
| We | testify |
| They | testify |
Past
| I | testified |
| You | testified |
| She | testified |
| We | testified |
| They | testified |
Perfect
| I | have | testified |
| You | have | testified |
| She | has | testified |
| We | have | testified |
| They | have | testified |
Future
| I | will | testify |
| You | will | testify |
| She | will | testify |
| We | will | testify |
| They | will | testify |
Past Perfect
| I | had | testified |
| You | had | testified |
| She | had | testified |
| We | had | testified |
| They | had | testified |
Future Perfect
| I | will | have | testified |
| You | will | have | testified |
| She | will | have | testified |
| We | will | have | testified |
| They | will | have | testified |
Present - Conditional
| I | would | testify |
| You | would | testify |
| She | would | testify |
| We | would | testify |
| They | would | testify |
Perfect - Conditional
| I | would | have | testified |
| You | would | have | testified |
| She | would | have | testified |
| We | would | have | testified |
| They | would | have | testified |