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