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