时间 动作状态 | 现在时形式 | 过去式 | will/shall | would/should | |
现在 | 过去 | 将来 | 过去将来 | ||
v | 一般 | v/v-s | v-ed | will/shall + v. | would/should + v. |
(be) + v-ing | 进行 | am/is/are + V-ing | was/were + v-ing | will/shall + be v-ing | would/should + be v-ing |
(have) +V-ed | 完成 | have/has + v-ed | Had + v-ed | will/shall + have v-ed | would/should + have v-ed |
(have) +been + V-ing | 完成进行 | have/has + been v-ing | had + been v-ing | will/shall + have been v-ing | would/should + have been v-ing |