Present
| I | sour |
| You | sour |
| She | sours |
| We | sour |
| They | sour |
Past
| I | soured |
| You | soured |
| She | soured |
| We | soured |
| They | soured |
Perfect
| I | have | soured |
| You | have | soured |
| She | has | soured |
| We | have | soured |
| They | have | soured |
Future
| I | will | sour |
| You | will | sour |
| She | will | sour |
| We | will | sour |
| They | will | sour |
Past Perfect
| I | had | soured |
| You | had | soured |
| She | had | soured |
| We | had | soured |
| They | had | soured |
Future Perfect
| I | will | have | soured |
| You | will | have | soured |
| She | will | have | soured |
| We | will | have | soured |
| They | will | have | soured |
Present - Conditional
| I | would | sour |
| You | would | sour |
| She | would | sour |
| We | would | sour |
| They | would | sour |
Perfect - Conditional
| I | would | have | soured |
| You | would | have | soured |
| She | would | have | soured |
| We | would | have | soured |
| They | would | have | soured |