| Simple | Progressive | Perfect | Progressive |
| Present |
| I humidify |
| you humidify |
| he/she/it humidifies |
| we humidify |
| you all humidify |
| they humidify |
|
| I am humidifying |
| you are humidifying |
| he/she/it is humidifying |
| we are humidifying |
| you all are humidifying |
| they are humidifying |
|
| I have humidified |
| you have humidified |
| he/she/it has humidified |
| we have humidified |
| you all have humidified |
| they have humidified |
|
| I have been humidifying |
| you have been humidifying |
| he/she/it has been humidifying |
| we have been humidifying |
| you all have been humidifying |
| they have been humidifying |
|
| Past |
| I humidified |
| you humidified |
| he/she/it humidified |
| we humidified |
| you all humidified |
| they humidified |
|
| I was humidifying |
| you were humidifying |
| he/she/it was humidifying |
| we were humidifying |
| you all were humidifying |
| they were humidifying |
|
| I had humidified |
| you had humidified |
| he/she/it had humidified |
| we had humidified |
| you all had humidified |
| they had humidified |
|
| I had been humidifying |
| you had been humidifying |
| he/she/it had been humidifying |
| we had been humidifying |
| you all had been humidifying |
| they had been humidifying |
|
| Future |
| I will humidify |
| you will humidify |
| he/she/it will humidify |
| we will humidify |
| you all will humidify |
| they will humidify |
|
| I will be humidifying |
| you will be humidifying |
| he/she/it will be humidifying |
| we are humidifying |
| you all will be humidifying |
| they will be humidifying |
|
| I will have humidified |
| you will have humidified |
| he/she/it will have humidified |
| we will have humidified |
| you all will have humidified |
| they will have humidified |
|
| I will have been humidifying |
| you will have been humidifying |
| he/she/it will have been humidifying |
| we will have been humidifying |
| you all will have been humidifying |
| they will have been humidifying |
|
