Present
| I | undermine |
| You | undermine |
| She | undermines |
| We | undermine |
| They | undermine |
Past
| I | undermined |
| You | undermined |
| She | undermined |
| We | undermined |
| They | undermined |
Perfect
| I | have | undermined |
| You | have | undermined |
| She | has | undermined |
| We | have | undermined |
| They | have | undermined |
Future
| I | will | undermine |
| You | will | undermine |
| She | will | undermine |
| We | will | undermine |
| They | will | undermine |
Past Perfect
| I | had | undermined |
| You | had | undermined |
| She | had | undermined |
| We | had | undermined |
| They | had | undermined |
Future Perfect
| I | will | have | undermined |
| You | will | have | undermined |
| She | will | have | undermined |
| We | will | have | undermined |
| They | will | have | undermined |
Present - Conditional
| I | would | undermine |
| You | would | undermine |
| She | would | undermine |
| We | would | undermine |
| They | would | undermine |
Perfect - Conditional
| I | would | have | undermined |
| You | would | have | undermined |
| She | would | have | undermined |
| We | would | have | undermined |
| They | would | have | undermined |