| Simple | Progressive | Perfect | Progressive |
| Present |
| I dampen |
| you dampen |
| he/she/it dampens |
| we dampen |
| you all dampen |
| they dampen |
|
| I am dampening |
| you are dampening |
| he/she/it is dampening |
| we are dampening |
| you all are dampening |
| they are dampening |
|
| I have dampened |
| you have dampened |
| he/she/it has dampened |
| we have dampened |
| you all have dampened |
| they have dampened |
|
| I have been dampening |
| you have been dampening |
| he/she/it has been dampening |
| we have been dampening |
| you all have been dampening |
| they have been dampening |
|
| Past |
| I dampened |
| you dampened |
| he/she/it dampened |
| we dampened |
| you all dampened |
| they dampened |
|
| I was dampening |
| you were dampening |
| he/she/it was dampening |
| we were dampening |
| you all were dampening |
| they were dampening |
|
| I had dampened |
| you had dampened |
| he/she/it had dampened |
| we had dampened |
| you all had dampened |
| they had dampened |
|
| I had been dampening |
| you had been dampening |
| he/she/it had been dampening |
| we had been dampening |
| you all had been dampening |
| they had been dampening |
|
| Future |
| I will dampen |
| you will dampen |
| he/she/it will dampen |
| we will dampen |
| you all will dampen |
| they will dampen |
|
| I will be dampening |
| you will be dampening |
| he/she/it will be dampening |
| we are dampening |
| you all will be dampening |
| they will be dampening |
|
| I will have dampened |
| you will have dampened |
| he/she/it will have dampened |
| we will have dampened |
| you all will have dampened |
| they will have dampened |
|
| I will have been dampening |
| you will have been dampening |
| he/she/it will have been dampening |
| we will have been dampening |
| you all will have been dampening |
| they will have been dampening |
|
