| 現在 (Present) "undergo" | I | undergo | |
| 現在継続 (Present Continuous) "undergo" | I | am undergoing | |
| 単純な過去 (Simple past) "undergo" | I | underwent | |
| 過去継続 (Past Continuous) "undergo" | I | was undergoing | |
| 現在完了 (Present perfect) "undergo" | I | have undergone | |
| 連続完璧な存在 (Present perfect continuous) "undergo" | I | have been undergoing | |
| 過去完了 (Past perfect) "undergo" | I | had undergone | |
| 過去の完璧な連続 (Past perfect continuous) "undergo" | I | had been undergoing | |
| 未来 (Future) "undergo" | I | will undergo | |
| 連続将来 (Future continuous) "undergo" | I | will be undergoing | |
| 未来完了 (Future perfect) "undergo" | I | will have undergone | |
| 連続完璧な将来 (Future perfect continuous) "undergo" | I | will have been undergoing |