请问英语有哪些时态?这些时态怎么用?请举例说明

英语的时态
1 一般现在时 I often watch TV .
2 一般过去时 I watched TV just now .
3 现在进行时 I am watching TV.
4 过去进行时 I was watching TV when you came in .
5 一般将来时 I will go to the zoo on Sunday .
6 过去将来时
Yesterday he told me he would go to the zoo next Sunday .
7 现在完成时 I have finished my homework.
8 过去完成时
He had lived here for 20 years by the end of last year .
9 现在完成进行时 I've been teaching for 10 years .
10 过去完成进行时
I had been working here before you came to the city .
11 一般将来进行时
We will be having a meeting at this time next Monday .
12 过去将来进行时
He said we would be having a meeting at this time next Monday .
13 将来完成时
I will have finished the book by the end of this year .
14 过去将来完成时
He told us that he would have finished the book by the end of this year .
15 将来完成进行时
By next summer ,he will have been working here for 30 years .
16 过去将来完成进行时
He told us he would have been working here for 30 years by next summer
构成：1 一般现在时 I/we/you/they +动词原形
She/He/It +动词第三人称单数形式
2 一般过去时 主语+动词过去式
3 现在进行时 be + ving
4 过去进行时 was/were + ving
5 一般将来时 will + 动词原形 或 be going to +动词原形
6 过去将来时 would + 动词原形 或 was/were going to +动词原形
7 现在完成时 have/has + v过去分词
8 过去完成时 had + v过去分词
9 现在完成进行时 have/has been + ving
10 过去完成进行时 had been + ving
11 一般将来进行时 will be + ving
12 过去将来进行时 would be + ving
13 将来完成时 will have + v过去分词
14 过去将来完成时 would have + v过去分词
15 将来完成进行时 will have been + ving
16 过去将来完成进行时 would have been + ving