| Obecny (Present) "undertake" | I | undertake | |
| Niniejszy seryjne (Present Continuous) "undertake" | I | am undertaking | |
| Czas przeszły (Simple past) "undertake" | I | undertook | |
| Dotychczasowe seryjne (Past Continuous) "undertake" | I | was undertaking | |
| Present Perfect (Present perfect) "undertake" | I | have undertaken | |
| Niniejszy seryjne (Present perfect continuous) "undertake" | I | have been undertaking | |
| Past Perfect (Past perfect) "undertake" | I | had undertaken | |
| Dotychczasowe seryjne (Past perfect continuous) "undertake" | I | had been undertaking | |
| Przyszłość (Future) "undertake" | I | will undertake | |
| Przyszłe ciągły (Future continuous) "undertake" | I | will be undertaking | |
| Future Perfect (Future perfect) "undertake" | I | will have undertaken | |
| Przyszłe doskonałe ciągły (Future perfect continuous) "undertake" | I | will have been undertaking |