| Simple | Progressive | Perfect | Progressive |
| Present |
| I decay |
| you decay |
| he/she/it decays |
| we decay |
| you all decay |
| they decay |
|
| I am decaying |
| you are decaying |
| he/she/it is decaying |
| we are decaying |
| you all are decaying |
| they are decaying |
|
| I have decayed |
| you have decayed |
| he/she/it has decayed |
| we have decayed |
| you all have decayed |
| they have decayed |
|
| I have been decaying |
| you have been decaying |
| he/she/it has been decaying |
| we have been decaying |
| you all have been decaying |
| they have been decaying |
|
| Past |
| I decayed |
| you decayed |
| he/she/it decayed |
| we decayed |
| you all decayed |
| they decayed |
|
| I was decaying |
| you were decaying |
| he/she/it was decaying |
| we were decaying |
| you all were decaying |
| they were decaying |
|
| I had decayed |
| you had decayed |
| he/she/it had decayed |
| we had decayed |
| you all had decayed |
| they had decayed |
|
| I had been decaying |
| you had been decaying |
| he/she/it had been decaying |
| we had been decaying |
| you all had been decaying |
| they had been decaying |
|
| Future |
| I will decay |
| you will decay |
| he/she/it will decay |
| we will decay |
| you all will decay |
| they will decay |
|
| I will be decaying |
| you will be decaying |
| he/she/it will be decaying |
| we are decaying |
| you all will be decaying |
| they will be decaying |
|
| I will have decayed |
| you will have decayed |
| he/she/it will have decayed |
| we will have decayed |
| you all will have decayed |
| they will have decayed |
|
| I will have been decaying |
| you will have been decaying |
| he/she/it will have been decaying |
| we will have been decaying |
| you all will have been decaying |
| they will have been decaying |
|
