16种时态
16种时态一般现在时I am a teacher.
一般过去时I was happy this time yesterday.
一般将来时There will be a bad news for you.
过去将来时
(would/should do)表示从过去的某个时间来看将要发生的事情：
He said he would finish the work.
现在进行时
（be doing）表示现在进行的动作或存在的状态：
He is playing basketball.
过去进行时（was/were doing）表示过去的一个具体时间正在发生的动词：
I was watching TV at eight last night.
将来进行时
（will be doing）表示在将来正在发生的动作：
I will be playing game tomorrow.
现在完成时
（have done）表示动作已经完成或刚刚完成：
I have already finished my homework.
过去完成时
（had done）表示过去发生已经完成的动作：
He found the wallet that Mike had lost.
将来完成时
（will have done）表示在将来某一时间以前已经完成或一直持续的动作：
He will have finished the task the time next month.
过去将来完成时 （should have done/ would have done）表示从过去观点看将来某时某动作已完成：
If I had left earlier I could have caught the bus.
现在完成进行时（have been doing）表示从过去开始的某一动作，延续至今，或将持续下去：
How long have you been playing game?
将来完成进行时（shall have been doing/will have been doing）表示某种状况一直持续到说话人所提及的时间：
By the end of next year, I will have been teaching for 8 years.
过去完成进行时（had been）相对过去的某个时刻来说已经对现在有直接影响并还在进行的动作：
We had been watching TV when you came in.
过去将来进行时（should be doing/would be doing）表示就过去某一时间而言，将来某一时刻或某一段时间正在进行的动作：
Mike told me that he would be going to Beijing.
过去将来完成进行时
（should have been doing/would have been doing）表示动作从过去某一时间开始一直延续到对于过去来说的将来某一时间：
By the end of this year I will have been living in Beijing for five years.
16种时态一般现在时I am a teacher.
一般过去时I was happy this time yesterday.
一般将来时There will be a bad news for you.
过去将来时
(would/should do)表示从过去的某个时间来看将要发生的事情：
He said he would finish the work.
现在进行时
（be doing）表示现在进行的动作或存在的状态：
He is playing basketball.
过去进行时（was/were doing）表示过去的一个具体时间正在发生的动词：
I was watching TV at eight last night.
将来进行时
（will be doing）表示在将来正在发生的动作：
I will be playing game tomorrow.
现在完成时
（have done）表示动作已经完成或刚刚完成：
I have already finished my homework.
过去完成时
（had done）表示过去发生已经完成的动作：
He found the wallet that Mike had lost.
将来完成时
（will have done）表示在将来某一时间以前已经完成或一直持续的动作：
He will have finished the task the time next month.
过去将来完成时 （should have done/ would have done）表示从过去观点看将来某时某动作已完成：
If I had left earlier I could have caught the bus.
现在完成进行时（have been doing）表示从过去开始的某一动作，延续至今，或将持续下去：
How long have you been playing game?
将来完成进行时（shall have been doing/will have been doing）表示某种状况一直持续到说话人所提及的时间：
By the end of next year, I will have been teaching for 8 years.
过去完成进行时（had been）相对过去的某个时刻来说已经对现在有直接影响并还在进行的动作：
We had been watching TV when you came in.
过去将来进行时（should be doing/would be doing）表示就过去某一时间而言，将来某一时刻或某一段时间正在进行的动作：
Mike told me that he would be going to Beijing.
过去将来完成进行时
（should have been doing/would have been doing）表示动作从过去某一时间开始一直延续到对于过去来说的将来某一时间：
By the end of this year I will have been living in Beijing for five years.
