| Präsens (Present) "require" | I | require | |
| Präsens Verlaufsform (Present continuous) "require" | I | am requiring | |
| Präteritum (Simple past) "require" | I | required | |
| Perfekt Verlaufsform (Past Continuous) "require" | I | was requiring | |
| Present Perfect (Präsens) "require" | I | have required | |
| Present Continuous (Futur) "require" | I | have been requiring | |
| Plusquamperfekt (Past perfect) "require" | I | had required | |
| Plusquamperfekt Verlaufsform (Past perfect continuous) "require" | I | had been requiring | |
| Futur I (Future) "require" | I | will require | |
| Futur I Verlaufsform (Future continuous) "require" | I | will be requiring | |
| Futur II (Future perfect) "require" | I | will have required | |
| Futur II Verlaufsform (Future perfect continuous) "require" | I | will have been requiring |