| Simple | Progressive | Perfect | Progressive |
| Present |
| I mass |
| you mass |
| he/she/it masses |
| we mass |
| you all mass |
| they mass |
|
| I am massing |
| you are massing |
| he/she/it is massing |
| we are massing |
| you all are massing |
| they are massing |
|
| I have massed |
| you have massed |
| he/she/it has massed |
| we have massed |
| you all have massed |
| they have massed |
|
| I have been massing |
| you have been massing |
| he/she/it has been massing |
| we have been massing |
| you all have been massing |
| they have been massing |
|
| Past |
| I massed |
| you massed |
| he/she/it massed |
| we massed |
| you all massed |
| they massed |
|
| I was massing |
| you were massing |
| he/she/it was massing |
| we were massing |
| you all were massing |
| they were massing |
|
| I had massed |
| you had massed |
| he/she/it had massed |
| we had massed |
| you all had massed |
| they had massed |
|
| I had been massing |
| you had been massing |
| he/she/it had been massing |
| we had been massing |
| you all had been massing |
| they had been massing |
|
| Future |
| I will mass |
| you will mass |
| he/she/it will mass |
| we will mass |
| you all will mass |
| they will mass |
|
| I will be massing |
| you will be massing |
| he/she/it will be massing |
| we are massing |
| you all will be massing |
| they will be massing |
|
| I will have massed |
| you will have massed |
| he/she/it will have massed |
| we will have massed |
| you all will have massed |
| they will have massed |
|
| I will have been massing |
| you will have been massing |
| he/she/it will have been massing |
| we will have been massing |
| you all will have been massing |
| they will have been massing |
|
