| Simple | Progressive | Perfect | Progressive |
| Present |
| I obsess |
| you obsess |
| he/she/it obsesses |
| we obsess |
| you all obsess |
| they obsess |
|
| I am obsessing |
| you are obsessing |
| he/she/it is obsessing |
| we are obsessing |
| you all are obsessing |
| they are obsessing |
|
| I have obsessed |
| you have obsessed |
| he/she/it has obsessed |
| we have obsessed |
| you all have obsessed |
| they have obsessed |
|
| I have been obsessing |
| you have been obsessing |
| he/she/it has been obsessing |
| we have been obsessing |
| you all have been obsessing |
| they have been obsessing |
|
| Past |
| I obsessed |
| you obsessed |
| he/she/it obsessed |
| we obsessed |
| you all obsessed |
| they obsessed |
|
| I was obsessing |
| you were obsessing |
| he/she/it was obsessing |
| we were obsessing |
| you all were obsessing |
| they were obsessing |
|
| I had obsessed |
| you had obsessed |
| he/she/it had obsessed |
| we had obsessed |
| you all had obsessed |
| they had obsessed |
|
| I had been obsessing |
| you had been obsessing |
| he/she/it had been obsessing |
| we had been obsessing |
| you all had been obsessing |
| they had been obsessing |
|
| Future |
| I will obsess |
| you will obsess |
| he/she/it will obsess |
| we will obsess |
| you all will obsess |
| they will obsess |
|
| I will be obsessing |
| you will be obsessing |
| he/she/it will be obsessing |
| we are obsessing |
| you all will be obsessing |
| they will be obsessing |
|
| I will have obsessed |
| you will have obsessed |
| he/she/it will have obsessed |
| we will have obsessed |
| you all will have obsessed |
| they will have obsessed |
|
| I will have been obsessing |
| you will have been obsessing |
| he/she/it will have been obsessing |
| we will have been obsessing |
| you all will have been obsessing |
| they will have been obsessing |
|
