| Present Simple - Presente (Present) "decay" | I | decay | |
| Presente Contínuo (Present Continuous) (Present Continuous) "decay" | I | am decaying | |
| Tempo passado (Simple past) "decay" | I | decayed | |
| Passado Contínuo (Past Continuous) "decay" | I | was decaying | |
| Present Perfect (Present perfect) "decay" | I | have decayed | |
| Perfeito Presente Contínuo (Present Perfect Continuous) "decay" | I | have been decaying | |
| Past Perfect (Present perfect) "decay" | I | had decayed | |
| Perfeito presente contínuo (Past perfect continuous) "decay" | I | had been decaying | |
| O futuro (Future) "decay" | I | will decay | |
| Futuro do Pretérito (Future Continuous) "decay" | I | will be decaying | |
| Futuro (Future perfect) "decay" | I | will have decayed | |
| Perfeito Futuro do Pretérito (Future perfect continuous) "decay" | I | will have been decaying |