| | ||
| ①is\am\are②do/does(V.\V.s) | am\is\are+done(V. p.p) | |
| will\be going to\be (about)to+do(V.) | will+be+done(V. p.p) | |
| ①was\were②did(V.-ed) | was\were+done(V. p.p) | |
| am\is\are+doing(V.-ing) | am\is\are+doing+done(V. p.p) | |
| was\were+doing(V.-ing) | was\were+doing+done(V.p.p) | |
| have\has+done(V. p.p.) | have\has+been+done(V. p.p) | |
| had+done(V. p.p.) | had+been+done(V. p.p.) | |
| 情态动词+V. | 情态动词+be+done(V. p.p.) |
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