| Présent (Present) "undertake" | I | undertake | |
| Présent continu (Present Continuous) "undertake" | I | am undertaking | |
| Passé (Simple past) "undertake" | I | undertook | |
| Passé antérieur (Past Continuous) "undertake" | I | was undertaking | |
| Présent parfait (Present perfect) "undertake" | I | have undertaken | |
| Continu Présent (Present perfect continuous) "undertake" | I | have been undertaking | |
| Imparfait (Past perfect) "undertake" | I | had undertaken | |
| Plus-que-parfait (Past perfect continuous) "undertake" | I | had been undertaking | |
| Futur simple (Future) "undertake" | I | will undertake | |
| Futur (Future continuous) "undertake" | I | will be undertaking | |
| Futur antérieur (Future perfect) "undertake" | I | will have undertaken | |
| Futur antérieur continu (Future perfect continuous) "undertake" | I | will have been undertaking |