Are there eight or sixteen English tenses? Please give detailed examples to illustrate the usage of English tenses in sentences.

Referring to the above table, the corresponding 1 6 tense from column1to column 4 (vertically) is:

1. Simple present tense, example:? We have six classes every day. We have six classes every day.

I am playing computer games now. I am playing computer games.

She has been to new york twice. She has been to new york twice.

He has been teaching mathematics for 10 years. He has been teaching mathematics for 10 years.

I bought two comic books yesterday. I bought two comic books yesterday.

We were playing basketball at 6 o'clock yesterday afternoon.

When I arrived at the station, the train had already left. Before I got to the station, the train had already left.

Finally, he got the long-awaited admission notice from that university. He finally received the long-awaited university admission notice.

I'm going to Kunming tomorrow.

10.？ I will be doing my homework this time tomorrow.

I will be doing my homework this time tomorrow.

1 1.？ By this time next year, I will have graduated from college. By this time next year, I will have graduated from college.

12.？ By the time the sun rises, I will have slept for nine hours before the sun rises.

13.？ For example, past future tense: I knew she would be late. I know she will be late.

14.？ They said they would come. They said they would come.

15.？ He said that he would return the money to me before the weekend. He said he would pay me back before the weekend.

16.？ Past and future perfect continuous tense (rarely used) means that the action has been going on from a certain time in the past to a certain time in the future. He said that he would have studied English for three years by the end of $ TERM in spring.