Present
| I | speculate |
| You | speculate |
| She | speculates |
| We | speculate |
| They | speculate |
Past
| I | speculated |
| You | speculated |
| She | speculated |
| We | speculated |
| They | speculated |
Perfect
| I | have | speculated |
| You | have | speculated |
| She | has | speculated |
| We | have | speculated |
| They | have | speculated |
Future
| I | will | speculate |
| You | will | speculate |
| She | will | speculate |
| We | will | speculate |
| They | will | speculate |
Past Perfect
| I | had | speculated |
| You | had | speculated |
| She | had | speculated |
| We | had | speculated |
| They | had | speculated |
Future Perfect
| I | will | have | speculated |
| You | will | have | speculated |
| She | will | have | speculated |
| We | will | have | speculated |
| They | will | have | speculated |
Present - Conditional
| I | would | speculate |
| You | would | speculate |
| She | would | speculate |
| We | would | speculate |
| They | would | speculate |
Perfect - Conditional
| I | would | have | speculated |
| You | would | have | speculated |
| She | would | have | speculated |
| We | would | have | speculated |
| They | would | have | speculated |