| Simple | Progressive | Perfect | Progressive |
| Present |
| I substantiate |
| you substantiate |
| he/she/it substantiates |
| we substantiate |
| you all substantiate |
| they substantiate |
|
| I am substantiating |
| you are substantiating |
| he/she/it is substantiating |
| we are substantiating |
| you all are substantiating |
| they are substantiating |
|
| I have substantiated |
| you have substantiated |
| he/she/it has substantiated |
| we have substantiated |
| you all have substantiated |
| they have substantiated |
|
| I have been substantiating |
| you have been substantiating |
| he/she/it has been substantiating |
| we have been substantiating |
| you all have been substantiating |
| they have been substantiating |
|
| Past |
| I substantiated |
| you substantiated |
| he/she/it substantiated |
| we substantiated |
| you all substantiated |
| they substantiated |
|
| I was substantiating |
| you were substantiating |
| he/she/it was substantiating |
| we were substantiating |
| you all were substantiating |
| they were substantiating |
|
| I had substantiated |
| you had substantiated |
| he/she/it had substantiated |
| we had substantiated |
| you all had substantiated |
| they had substantiated |
|
| I had been substantiating |
| you had been substantiating |
| he/she/it had been substantiating |
| we had been substantiating |
| you all had been substantiating |
| they had been substantiating |
|
| Future |
| I will substantiate |
| you will substantiate |
| he/she/it will substantiate |
| we will substantiate |
| you all will substantiate |
| they will substantiate |
|
| I will be substantiating |
| you will be substantiating |
| he/she/it will be substantiating |
| we are substantiating |
| you all will be substantiating |
| they will be substantiating |
|
| I will have substantiated |
| you will have substantiated |
| he/she/it will have substantiated |
| we will have substantiated |
| you all will have substantiated |
| they will have substantiated |
|
| I will have been substantiating |
| you will have been substantiating |
| he/she/it will have been substantiating |
| we will have been substantiating |
| you all will have been substantiating |
| they will have been substantiating |
|
