| Presente (Present) "prevent" | I | prevent | |
| Presente continuo (Present Continuous) "prevent" | I | am preventing | |
| Pasado simple (Simple past) "prevent" | I | prevented | |
| Pasado continuo (Past Continuous) "prevent" | I | was preventing | |
| Presente perfecto (Present perfect) "prevent" | I | have prevented | |
| Presente perfecto continuo (Present perfect continuous) "prevent" | I | have been preventing | |
| Pasado perfecto (Past perfect) "prevent" | I | had prevented | |
| Pasado perfecto continuo (Past perfect continuous) "prevent" | I | had been preventing | |
| Futuro (Future) "prevent" | I | will prevent | |
| Futuro continuo (Future continuous) "prevent" | I | will be preventing | |
| Futuro perfecto (Future perfect) "prevent" | I | will have prevented | |
| Futuro perfecto continuo (Future perfect continuous) "prevent" | I | will have been preventing |