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