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