Present
| I | decay |
| You | decay |
| She | decays |
| We | decay |
| They | decay |
Past
| I | decayed |
| You | decayed |
| She | decayed |
| We | decayed |
| They | decayed |
Perfect
| I | have | decayed |
| You | have | decayed |
| She | has | decayed |
| We | have | decayed |
| They | have | decayed |
Future
| I | will | decay |
| You | will | decay |
| She | will | decay |
| We | will | decay |
| They | will | decay |
Past Perfect
| I | had | decayed |
| You | had | decayed |
| She | had | decayed |
| We | had | decayed |
| They | had | decayed |
Future Perfect
| I | will | have | decayed |
| You | will | have | decayed |
| She | will | have | decayed |
| We | will | have | decayed |
| They | will | have | decayed |
Present - Conditional
| I | would | decay |
| You | would | decay |
| She | would | decay |
| We | would | decay |
| They | would | decay |
Perfect - Conditional
| I | would | have | decayed |
| You | would | have | decayed |
| She | would | have | decayed |
| We | would | have | decayed |
| They | would | have | decayed |