Present
| I | obsess |
| You | obsess |
| She | obsesses |
| We | obsess |
| They | obsess |
Past
| I | obsessed |
| You | obsessed |
| She | obsessed |
| We | obsessed |
| They | obsessed |
Perfect
| I | have | obsessed |
| You | have | obsessed |
| She | has | obsessed |
| We | have | obsessed |
| They | have | obsessed |
Future
| I | will | obsess |
| You | will | obsess |
| She | will | obsess |
| We | will | obsess |
| They | will | obsess |
Past Perfect
| I | had | obsessed |
| You | had | obsessed |
| She | had | obsessed |
| We | had | obsessed |
| They | had | obsessed |
Future Perfect
| I | will | have | obsessed |
| You | will | have | obsessed |
| She | will | have | obsessed |
| We | will | have | obsessed |
| They | will | have | obsessed |
Present - Conditional
| I | would | obsess |
| You | would | obsess |
| She | would | obsess |
| We | would | obsess |
| They | would | obsess |
Perfect - Conditional
| I | would | have | obsessed |
| You | would | have | obsessed |
| She | would | have | obsessed |
| We | would | have | obsessed |
| They | would | have | obsessed |