巧 记 英 语 时 态 公 式
1. 一般过去时：did
2. 一般将来时：will + do / be going to + do
3. 一般现在时：do / does
4. 现在进行时：be + doing
5. 现在完成时：have / has + done
6. 现在完成进行时：have /has been + doing
7. 过去进行时：was / were + doing
8. 过去完成时：had + done
9. 过去完成进行时：had been + doing
10. 将来进行时：will be + doing
11. 将来完成时：will have + done
12. 将来完成进行时：will have been + doing
13. 一般过去将来时：would + do 或 was going to
14. 过去将来进行时：would be doing
15. 过去将来完成时：would have done
16. 过去将来完成进行时：would have been doing
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