| 展示 (Present) "doubt" | I | doubt | |
| 现在进行时 (Present Continuous) "doubt" | I | am doubting | |
| 一般过去时 (Simple past) "doubt" | I | doubted | |
| 过去进行时 (Past Continuous) "doubt" | I | was doubting | |
| 现在完成 (Present perfect) "doubt" | I | have doubted | |
| 现在完成进行时 (Present perfect continuous) "doubt" | I | have been doubting | |
| 过去完成时 (Past perfect) "doubt" | I | had doubted | |
| 过去完成时 (Past perfect continuous) "doubt" | I | had been doubting | |
| 未来 (Future) "doubt" | I | will doubt | |
| 将来进行时 (Future continuous) "doubt" | I | will be doubting | |
| 未来完美 (Future perfect) "doubt" | I | will have doubted | |
| 未来持续完善 (Future perfect continuous) "doubt" | I | will have been doubting |