1. 一般现在时: Knowledge comes from practice.
2. 一般过去时: I never thought you were going to bring me a gift.
3. 一般将来时: He will be 15 years old next month.
4. 过去将来时: They told us that they would go to the Summer Palace for a visit.
5. 现在进行时: They're planting trees by the lake.
6. 过去进行时: I was watching TV this time yesterday.
7. 将来进行时: I will be visiting a school in Shanghai between
Aug. 7 and 27.
8. 过去将来进行时: They told us that they would be having a meeting at 8:00 that evening.
9. 现在完成时: I've opened the door.
10. 过去完成时: The pen I thought I had lost is on my desk, right under my nose.
11. 将来完成时: By the end of this century, our country will have become a more powerful one.
12. 现在完成进行时: I've been teaching nearly 30 years.
13. 过去完成进行时: The corporal collected the boy’s cap, shoes, knife, and the branch he had been cutting.
