Present
| I | mutter |
| You | mutter |
| She | mutters |
| We | mutter |
| They | mutter |
Past
| I | muttered |
| You | muttered |
| She | muttered |
| We | muttered |
| They | muttered |
Perfect
| I | have | muttered |
| You | have | muttered |
| She | has | muttered |
| We | have | muttered |
| They | have | muttered |
Future
| I | will | mutter |
| You | will | mutter |
| She | will | mutter |
| We | will | mutter |
| They | will | mutter |
Past Perfect
| I | had | muttered |
| You | had | muttered |
| She | had | muttered |
| We | had | muttered |
| They | had | muttered |
Future Perfect
| I | will | have | muttered |
| You | will | have | muttered |
| She | will | have | muttered |
| We | will | have | muttered |
| They | will | have | muttered |
Present - Conditional
| I | would | mutter |
| You | would | mutter |
| She | would | mutter |
| We | would | mutter |
| They | would | mutter |
Perfect - Conditional
| I | would | have | muttered |
| You | would | have | muttered |
| She | would | have | muttered |
| We | would | have | muttered |
| They | would | have | muttered |