Present
| I | stupefy |
| You | stupefy |
| She | stupefies |
| We | stupefy |
| They | stupefy |
Past
| I | stupefied |
| You | stupefied |
| She | stupefied |
| We | stupefied |
| They | stupefied |
Perfect
| I | have | stupefied |
| You | have | stupefied |
| She | has | stupefied |
| We | have | stupefied |
| They | have | stupefied |
Future
| I | will | stupefy |
| You | will | stupefy |
| She | will | stupefy |
| We | will | stupefy |
| They | will | stupefy |
Past Perfect
| I | had | stupefied |
| You | had | stupefied |
| She | had | stupefied |
| We | had | stupefied |
| They | had | stupefied |
Future Perfect
| I | will | have | stupefied |
| You | will | have | stupefied |
| She | will | have | stupefied |
| We | will | have | stupefied |
| They | will | have | stupefied |
Present - Conditional
| I | would | stupefy |
| You | would | stupefy |
| She | would | stupefy |
| We | would | stupefy |
| They | would | stupefy |
Perfect - Conditional
| I | would | have | stupefied |
| You | would | have | stupefied |
| She | would | have | stupefied |
| We | would | have | stupefied |
| They | would | have | stupefied |