Present
| I | demonstrate |
| You | demonstrate |
| She | demonstrates |
| We | demonstrate |
| They | demonstrate |
Past
| I | demonstrated |
| You | demonstrated |
| She | demonstrated |
| We | demonstrated |
| They | demonstrated |
Perfect
| I | have | demonstrated |
| You | have | demonstrated |
| She | has | demonstrated |
| We | have | demonstrated |
| They | have | demonstrated |
Future
| I | will | demonstrate |
| You | will | demonstrate |
| She | will | demonstrate |
| We | will | demonstrate |
| They | will | demonstrate |
Past Perfect
| I | had | demonstrated |
| You | had | demonstrated |
| She | had | demonstrated |
| We | had | demonstrated |
| They | had | demonstrated |
Future Perfect
| I | will | have | demonstrated |
| You | will | have | demonstrated |
| She | will | have | demonstrated |
| We | will | have | demonstrated |
| They | will | have | demonstrated |
Present - Conditional
| I | would | demonstrate |
| You | would | demonstrate |
| She | would | demonstrate |
| We | would | demonstrate |
| They | would | demonstrate |
Perfect - Conditional
| I | would | have | demonstrated |
| You | would | have | demonstrated |
| She | would | have | demonstrated |
| We | would | have | demonstrated |
| They | would | have | demonstrated |