| Simple | Progressive | Perfect | Progressive |
| Present |
| I sustain |
| you sustain |
| he/she/it sustains |
| we sustain |
| you all sustain |
| they sustain |
|
| I am sustaining |
| you are sustaining |
| he/she/it is sustaining |
| we are sustaining |
| you all are sustaining |
| they are sustaining |
|
| I have sustained |
| you have sustained |
| he/she/it has sustained |
| we have sustained |
| you all have sustained |
| they have sustained |
|
| I have been sustaining |
| you have been sustaining |
| he/she/it has been sustaining |
| we have been sustaining |
| you all have been sustaining |
| they have been sustaining |
|
| Past |
| I sustained |
| you sustained |
| he/she/it sustained |
| we sustained |
| you all sustained |
| they sustained |
|
| I was sustaining |
| you were sustaining |
| he/she/it was sustaining |
| we were sustaining |
| you all were sustaining |
| they were sustaining |
|
| I had sustained |
| you had sustained |
| he/she/it had sustained |
| we had sustained |
| you all had sustained |
| they had sustained |
|
| I had been sustaining |
| you had been sustaining |
| he/she/it had been sustaining |
| we had been sustaining |
| you all had been sustaining |
| they had been sustaining |
|
| Future |
| I will sustain |
| you will sustain |
| he/she/it will sustain |
| we will sustain |
| you all will sustain |
| they will sustain |
|
| I will be sustaining |
| you will be sustaining |
| he/she/it will be sustaining |
| we are sustaining |
| you all will be sustaining |
| they will be sustaining |
|
| I will have sustained |
| you will have sustained |
| he/she/it will have sustained |
| we will have sustained |
| you all will have sustained |
| they will have sustained |
|
| I will have been sustaining |
| you will have been sustaining |
| he/she/it will have been sustaining |
| we will have been sustaining |
| you all will have been sustaining |
| they will have been sustaining |
|
