時間和動作的種類
1.一般現在時(do/does)
2.一般過去時(did)
3.一般將來時(will/shall do),(be going to do)
4.一般過去將來時(would/should do),(was/were going to do)
5.現在進行時(be doing)
6.過去進行時(was/were doing)
7.將來進行時(will/shall be doing)
8.過去將來進行時(would/should be doing)
9.現在完成時(have/has done)
10.過去完成時(had done)
11.將來完成時(will/shall have done)
12.過去將來完成時(would/should have done)
13.現在完成進行時(have/has been doing)
14.過去完成進行時(had been doing)
15.將來完成進行時(will/shall have been doing)
16.過去將來完成進行時(would/should have been doing)