| Presente (Present) "undergo" | I | undergo | |
| Presente Progressivo (Present Continuous) "undergo" | I | am undergoing | |
| Passato semplice (Simple past) "undergo" | I | underwent | |
| Past Continuous (Past Continuous) "undergo" | I | was undergoing | |
| Regalo perfetto (Present perfect) "undergo" | I | have undergone | |
| Trapassato prossimo (Present perfect continuous) "undergo" | I | have been undergoing | |
| Passato perfetto (Past perfect) "undergo" | I | had undergone | |
| Trapassato remoto (Past perfect continuous) "undergo" | I | had been undergoing | |
| Futuro (Future) "undergo" | I | will undergo | |
| Trapassato remoto (Future continuous) "undergo" | I | will be undergoing | |
| Futuro perfetto (Future perfect) "undergo" | I | will have undergone | |
| Congiuntivo (Future perfect continuous) "undergo" | I | will have been undergoing |