Present
| I | stump |
| You | stump |
| She | stumps |
| We | stump |
| They | stump |
Past
| I | stumped |
| You | stumped |
| She | stumped |
| We | stumped |
| They | stumped |
Perfect
| I | have | stumped |
| You | have | stumped |
| She | has | stumped |
| We | have | stumped |
| They | have | stumped |
Future
| I | will | stump |
| You | will | stump |
| She | will | stump |
| We | will | stump |
| They | will | stump |
Past Perfect
| I | had | stumped |
| You | had | stumped |
| She | had | stumped |
| We | had | stumped |
| They | had | stumped |
Future Perfect
| I | will | have | stumped |
| You | will | have | stumped |
| She | will | have | stumped |
| We | will | have | stumped |
| They | will | have | stumped |
Present - Conditional
| I | would | stump |
| You | would | stump |
| She | would | stump |
| We | would | stump |
| They | would | stump |
Perfect - Conditional
| I | would | have | stumped |
| You | would | have | stumped |
| She | would | have | stumped |
| We | would | have | stumped |
| They | would | have | stumped |