| Simple | Progressive | Perfect | Progressive |
| Present |
| I decalcify |
| you decalcify |
| he/she/it decalcifies |
| we decalcify |
| you all decalcify |
| they decalcify |
|
| I am decalcifying |
| you are decalcifying |
| he/she/it is decalcifying |
| we are decalcifying |
| you all are decalcifying |
| they are decalcifying |
|
| I have decalcified |
| you have decalcified |
| he/she/it has decalcified |
| we have decalcified |
| you all have decalcified |
| they have decalcified |
|
| I have been decalcifying |
| you have been decalcifying |
| he/she/it has been decalcifying |
| we have been decalcifying |
| you all have been decalcifying |
| they have been decalcifying |
|
| Past |
| I decalcified |
| you decalcified |
| he/she/it decalcified |
| we decalcified |
| you all decalcified |
| they decalcified |
|
| I was decalcifying |
| you were decalcifying |
| he/she/it was decalcifying |
| we were decalcifying |
| you all were decalcifying |
| they were decalcifying |
|
| I had decalcified |
| you had decalcified |
| he/she/it had decalcified |
| we had decalcified |
| you all had decalcified |
| they had decalcified |
|
| I had been decalcifying |
| you had been decalcifying |
| he/she/it had been decalcifying |
| we had been decalcifying |
| you all had been decalcifying |
| they had been decalcifying |
|
| Future |
| I will decalcify |
| you will decalcify |
| he/she/it will decalcify |
| we will decalcify |
| you all will decalcify |
| they will decalcify |
|
| I will be decalcifying |
| you will be decalcifying |
| he/she/it will be decalcifying |
| we are decalcifying |
| you all will be decalcifying |
| they will be decalcifying |
|
| I will have decalcified |
| you will have decalcified |
| he/she/it will have decalcified |
| we will have decalcified |
| you all will have decalcified |
| they will have decalcified |
|
| I will have been decalcifying |
| you will have been decalcifying |
| he/she/it will have been decalcifying |
| we will have been decalcifying |
| you all will have been decalcifying |
| they will have been decalcifying |
|
