| Simple | Progressive | Perfect | Progressive |
| Present |
| I amass |
| you amass |
| he/she/it amasses |
| we amass |
| you all amass |
| they amass |
|
| I am amassing |
| you are amassing |
| he/she/it is amassing |
| we are amassing |
| you all are amassing |
| they are amassing |
|
| I have amassed |
| you have amassed |
| he/she/it has amassed |
| we have amassed |
| you all have amassed |
| they have amassed |
|
| I have been amassing |
| you have been amassing |
| he/she/it has been amassing |
| we have been amassing |
| you all have been amassing |
| they have been amassing |
|
| Past |
| I amassed |
| you amassed |
| he/she/it amassed |
| we amassed |
| you all amassed |
| they amassed |
|
| I was amassing |
| you were amassing |
| he/she/it was amassing |
| we were amassing |
| you all were amassing |
| they were amassing |
|
| I had amassed |
| you had amassed |
| he/she/it had amassed |
| we had amassed |
| you all had amassed |
| they had amassed |
|
| I had been amassing |
| you had been amassing |
| he/she/it had been amassing |
| we had been amassing |
| you all had been amassing |
| they had been amassing |
|
| Future |
| I will amass |
| you will amass |
| he/she/it will amass |
| we will amass |
| you all will amass |
| they will amass |
|
| I will be amassing |
| you will be amassing |
| he/she/it will be amassing |
| we are amassing |
| you all will be amassing |
| they will be amassing |
|
| I will have amassed |
| you will have amassed |
| he/she/it will have amassed |
| we will have amassed |
| you all will have amassed |
| they will have amassed |
|
| I will have been amassing |
| you will have been amassing |
| he/she/it will have been amassing |
| we will have been amassing |
| you all will have been amassing |
| they will have been amassing |
|
