| Simple | Progressive | Perfect | Progressive |
| Present |
| I acknowledge |
| you acknowledge |
| he/she/it acknowledges |
| we acknowledge |
| you all acknowledge |
| they acknowledge |
|
| I am acknowledging |
| you are acknowledging |
| he/she/it is acknowledging |
| we are acknowledging |
| you all are acknowledging |
| they are acknowledging |
|
| I have acknowledged |
| you have acknowledged |
| he/she/it has acknowledged |
| we have acknowledged |
| you all have acknowledged |
| they have acknowledged |
|
| I have been acknowledging |
| you have been acknowledging |
| he/she/it has been acknowledging |
| we have been acknowledging |
| you all have been acknowledging |
| they have been acknowledging |
|
| Past |
| I acknowledged |
| you acknowledged |
| he/she/it acknowledged |
| we acknowledged |
| you all acknowledged |
| they acknowledged |
|
| I was acknowledging |
| you were acknowledging |
| he/she/it was acknowledging |
| we were acknowledging |
| you all were acknowledging |
| they were acknowledging |
|
| I had acknowledged |
| you had acknowledged |
| he/she/it had acknowledged |
| we had acknowledged |
| you all had acknowledged |
| they had acknowledged |
|
| I had been acknowledging |
| you had been acknowledging |
| he/she/it had been acknowledging |
| we had been acknowledging |
| you all had been acknowledging |
| they had been acknowledging |
|
| Future |
| I will acknowledge |
| you will acknowledge |
| he/she/it will acknowledge |
| we will acknowledge |
| you all will acknowledge |
| they will acknowledge |
|
| I will be acknowledging |
| you will be acknowledging |
| he/she/it will be acknowledging |
| we are acknowledging |
| you all will be acknowledging |
| they will be acknowledging |
|
| I will have acknowledged |
| you will have acknowledged |
| he/she/it will have acknowledged |
| we will have acknowledged |
| you all will have acknowledged |
| they will have acknowledged |
|
| I will have been acknowledging |
| you will have been acknowledging |
| he/she/it will have been acknowledging |
| we will have been acknowledging |
| you all will have been acknowledging |
| they will have been acknowledging |
|
