Present
| I | stagnate |
| You | stagnate |
| She | stagnates |
| We | stagnate |
| They | stagnate |
Past
| I | stagnated |
| You | stagnated |
| She | stagnated |
| We | stagnated |
| They | stagnated |
Perfect
| I | have | stagnated |
| You | have | stagnated |
| She | has | stagnated |
| We | have | stagnated |
| They | have | stagnated |
Future
| I | will | stagnate |
| You | will | stagnate |
| She | will | stagnate |
| We | will | stagnate |
| They | will | stagnate |
Past Perfect
| I | had | stagnated |
| You | had | stagnated |
| She | had | stagnated |
| We | had | stagnated |
| They | had | stagnated |
Future Perfect
| I | will | have | stagnated |
| You | will | have | stagnated |
| She | will | have | stagnated |
| We | will | have | stagnated |
| They | will | have | stagnated |
Present - Conditional
| I | would | stagnate |
| You | would | stagnate |
| She | would | stagnate |
| We | would | stagnate |
| They | would | stagnate |
Perfect - Conditional
| I | would | have | stagnated |
| You | would | have | stagnated |
| She | would | have | stagnated |
| We | would | have | stagnated |
| They | would | have | stagnated |