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