英语一般现在时的基本结构

一般现在时的基本结构主要有两种形式：

（1）be型：句子的谓语动词只有be（am,is或are）：

a．肯定句中,只出现be,如：

I am a student．我是一名学生.

b．否定句中,要在be后面加not,如：

She isn''t a teacher．她不是教师.

c．一般疑问句,要将be放在句子开头（注意句首字母大写）,句尾用问号,答语用Yes,主语+be．或No,主语+be+not．如：

—Are you ready?—你准备好了吗?

—Yes,I am．—是的,我准备好了.

（—No,I''m not．—不,我没准备好.）

（2）实义动词型：句中的谓语动词为实义动词（也叫行为动词）：

a．肯定句中,只出现实义动词,如：

I get up in the morning．我早晨起床.

b．否定句中,要在实义动词前面加do（does）＋not,do（does）作助动词,本身无意义,常与not缩写成don''t（doesn''t）,如：

I don''t like vegetables．我不喜欢蔬菜.

c．一般疑问句,要在句子开头加助动词Do（does）,句尾用问号,简略答语用Yes,主语+do（does）．或No,主语+do（does）＋not．如：

—Do you like oranges?—你喜欢桔子吗?

—Yes,I do．—是的,我喜欢.

（—No,I don''t．—不,我不喜欢.）

英语中的十六种时态

（1）一般现在时

基本形式（以do为例）： 第三人称单数：does（主语为非第三人称单数）；

肯定句：主语＋动词原形＋其他；

He works for us.

否定句：主语＋don‘t/doesn''t＋动词原形＋其他；

He doesn''t work for us.

一般疑问句：Do/Does＋主语＋动词原形＋其他。

肯定回答：Yes，（＋ 主语＋do/does）．

否定回答：No，（＋主语＋don''t/doesn''t.）

特殊疑问句：疑问词+一般疑问句语

Does he work for us?

Yes, he does.

No, he doesn''t

What does he do for us?

He works for us.

（2）一般过去时

be动词＋行为动词的过去式

否定句式：在行为动词前加didn‘t，同时还原行为动词，或was／were＋not；

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

例如： Did he work for us?

He didn''t work for us.

He worked for us.

（3）一般将来时

am／are／is＋going to＋do 或

will／shall＋do

am/is/are/about to + do

am/is/are to + do;

一般将来时的表达方法

be going to +动词原形

be +不定式,be to+动词原形,be about to ＋动词原形

be able to +不定式

be about to+动词原形

will + 动词原形；

例如：He is going to work for us.

He will work for us；

He is coming.这是特殊的用一般现在时 表达 将来时态 的例子！

(4)过去将来时

be（was，were）going to+动词原形

be（was，were）about to+动词原形

be（was，were）to+动词原形

肯定句：主语+be（was，were）going to+动词原形～.

否定句：主语+be（was，were）not going to+动词原形～.

疑问句：Be（Was，Were）+主语+going to+动词原形～？

肯定句：主语+would（should）+动词原形～.

否定句：主语+would（should）not+动词原形～.

疑问句：Would（Should）+主语+动词原形～？

He would work for us.

(5)现在进行时

主语+be+v.ing〔现在分词〕形式(其中v表示动词)

表示现在正在进行的动作或最近在做的事。

例如：I am buying a book.

第一人称+am+doing+sth

第二人称+are+doing +sth （doing是泛指所有的v-ing形式）

第三人称+is+doing+sth

例：He is working.

(6)过去进行时

肯定句：主语+was/were+doing+其它

否定句：主语+was/were+not+doing+其它

一般疑问句及答语：Was/Were+主语+doing+其它 ；答语：Yes,I主语+was/were./No,I主语+wasn''t/weren''t.

特殊疑问句：特殊疑问词+was/were+主语+doing+其它

He was working when he was alive.

(7)将来进行时

主语+will + be +现在分词

He will be working for us.=He will work for us.

(8)过去将来进行时

should(would)+be+现在分词

He said that he would be working for us.=He said that he would work for us.

(9)现在完成时

基本结构：主语+have/has+过去分词(done)

①肯定句：主语+have/has+过去分词+其他

②否定句：主语+have/has+not+过去分词+其他

③一般疑问句：Have/Has+主语+过去分词+其他

④特殊疑问句：特殊疑问词+一般疑问句（have/has+主语+过去分词+其他\

He has worked for us for ten years.

Has he worked for us for ten years.

(10)过去完成时

基本结构：主语+had+过去分词(done)

①肯定句：主语+had+过去分词+其他

②否定句：主语+had+not+过去分词+其他

③一般疑问句：Had+主语+过去分词+其他

肯定回答：Yes,主语+had

否定回答：No,主语+hadn''t

④特殊疑问句：特殊疑问词+一般疑问句（had+主语+过去分词+其他）

语法判定:

（ 1 ） by + 过去的时间点。如：

I had finished reading the novel by nine o''clock last night.

（ 2 ） by the end of + 过去的时间点。如：

We had learnt over two thousand English words by the end of last term.

（ 3 ） before + 过去的时间点。如：

They had planted six hundred trees before last Wednesday.

(11)将来完成时

（shall）will+have+动词过去分词

before+将来时间或by+将来时间

before或by the time引导的现在时的从句

He will have worked for us.=He will work for us.

(12)过去将来完成时

should / would have done sth.

He said that he would have worked for us.=He said that he would work for us.

(13)现在完成进行时

基本与现在完成时相同，但是现在完成进行时只能表示仍然持续的概念

have/has been +-ing 分词

He has been working for us for ten years.=He has worked for us for ten years.

(14)过去完成进行时

had been +-ing 分词

He said that he had been working for us for ten years.=He said that he had worked for us for ten years.

(15)将来完成进行时

主语+ shall/will have been doing

He will have been working for us.=He will work for us.

翻译为：他最近一直在为我们工作（过去在工作，现在在工作，将来还会工作）

(16)过去将来完成进行时

should+have been+现在分词用于第一人称

would have been+现在分词用于其他人称

He said that he would have been working for us.=He said that he would work for us.