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