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