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