英语的时态(tense)j是一种动词形式，不同的时态用以表示不同的时间与方式。

下面就英语中常见的八种基本时态进行阐述，其它的时态都是在这八种时态的基础上结合而成的。

一、一般现在时：

1.概念：经常、反复发生的动作或行为及现在的某种状况。

2.时间状语：always,usually,often,sometimes,every week (day,year, month…),once a week,on Sundays,

3.基本结构：动词原形(如主语为第三人称单数，动词上要加(e)S)

4.否定形式：am/is/are+not;此时态的谓语动词若为行为动词，则在其前加don’t,如主语为第三人称单数，则用doesn’t，同时还原行为动词。

5.一般疑问句：把be动词放于句首;用助动词do提问，如主语为第三人称单数，则用does，同时，还原行为动词。

6.例句：It seldom snows here.

He is always ready to help others.

Action speaks louder than words.

二、一般过去时：

1.概念：过去某个时间里发生的动作或状态;过去习惯性、经常性的动作、行为。

2.时间状语：ago,yesterday,the day before yesterday,last week(year, night, month…),in 1989,just now,at the age of 5,one day,long long ago, once upon a time,etc.

3.基本结构：be动词;行为动词

4.否定形式：was/were+not;在行为动词前加didn’t，同时还原行为动词。

5.一般疑问句：was或were放于句首;用助动词do的过去式did 提问，同时还原行为动词。

6.例句：She often came to help us in those days.

I didn’t know you were so busy.

三、现在进行时：

1.概念：表示现阶段或说话时正在进行的动作及行为。

2.时间状语：now,at this time,these days, etc.

3.基本结构：am/is/are+doing

4.否定形式：am/is/are+not+doing.

5.一般疑问句：把be动词放于句首。

6.例句：How are you feeling today?

He is doing well in his lessons.

四、过去进行时：

1.概念：表示过去某段时间或某一时刻正在发生或进行的行为或动作。

2.时间状语：at this time yesterday, at that time或以when引导的谓语动词是一般过去时的时间状语等。

3.基本结构：was/were+doing

4.否定形式：was/were + not + doing.

5.一般疑问句：把was或were放于句首。

6.例句：At that time she was working in a PLA unit.

When he came in,I was reading a newspaper.

五、现在完成时：

1.概念：过去发生或已经完成的动作对现在造成的影响或结果，或从过去已经开始，持续到现在的动作或状态。

2.时间状语：recently,lately, since…for…,in the past few years, etc.

3.基本结构：have/has + done

4.否定形式：have/has + not +d one.

5.一般疑问句：have或has。

6.例句：I’ve written an article.

It has been raining these days.

六、过去完成时：

1.概念：以过去某个时间为标准，在此以前发生的动作或行为，或在过去某动作之前完成的行为，即“过去的过去”。

2.时间状语：before,by the end of last year(term, month…),etc.

3.基本结构：had + done.

4.否定形式：had + not + done.

5.一般疑问句：had放于句首。

6.例句：As soon as we got to the station, the train had left.

By the end of last month. We had reviewed four books

七、一般将来时：

1.概念：表示将要发生的动作或存在的状态及打算、计划或准备做某事。

2.时间状语：tomorrow, next day(week, month, year…),soon, in a few minutes, by…,the day after tomorrow, etc.

3.基本结构：am/is/are/going to + do;will/shall + do.

4.否定形式：was/were + not; 在行为动词前加didn’t，同时还原行为动词。

5.一般疑问句：be放于句首;will/shall提到句首。

6.例句：They are going to have a competition with us in studies.

It is going to rain.

八、过去将来时：

1.概念：立足于过去某一时刻，从过去看将来，常用于宾语从句中。

2.时间状语：the next day(morning, year…),the following month(week…),etc.

3.基本结构：was/were/going to + do;would/should + do.

4.否定形式：was/were/not + going to + do;would/should + not + do.

5.一般疑问句：was或were放于句首;would/should 提到句首。

6.例句：He said he would go to Beijing the next day.

I asked who was going there .