Present
| I | unscrew |
| You | unscrew |
| She | unscrews |
| We | unscrew |
| They | unscrew |
Past
| I | unscrewed |
| You | unscrewed |
| She | unscrewed |
| We | unscrewed |
| They | unscrewed |
Perfect
| I | have | unscrewed |
| You | have | unscrewed |
| She | has | unscrewed |
| We | have | unscrewed |
| They | have | unscrewed |
Future
| I | will | unscrew |
| You | will | unscrew |
| She | will | unscrew |
| We | will | unscrew |
| They | will | unscrew |
Past Perfect
| I | had | unscrewed |
| You | had | unscrewed |
| She | had | unscrewed |
| We | had | unscrewed |
| They | had | unscrewed |
Future Perfect
| I | will | have | unscrewed |
| You | will | have | unscrewed |
| She | will | have | unscrewed |
| We | will | have | unscrewed |
| They | will | have | unscrewed |
Present - Conditional
| I | would | unscrew |
| You | would | unscrew |
| She | would | unscrew |
| We | would | unscrew |
| They | would | unscrew |
Perfect - Conditional
| I | would | have | unscrewed |
| You | would | have | unscrewed |
| She | would | have | unscrewed |
| We | would | have | unscrewed |
| They | would | have | unscrewed |