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