英语的十六种时态汇总

英语的十六种时态汇总
XXX used to express different times and ways。

They represent the form of verbs for ns。

events。

and XXX structures。

we refer to the verb forms in the corresponding tenses.
English tenses are divided into 16 types: present simple。

past simple。

future simple。

future in the past。

as well as the progressive。

perfect。

and perfect progressive forms of these four tenses.
Here we will explain the eight basic tenses commonly used in English。

and other XXX.
1.Present Simple:
XXX: XXX.
Time ns: always。

usually。

often。

sometimes。

every week (day。

year。

month…)。

once a week。

on Sundays。

etc.
Basic structure: verb base form (if the subject is third person singular。

the verb is changed to third person singular form).
Negative form: am/is/are + not。

for n verbs。

add "don't" before the verb。

for third person singular。

use "doesn't" and revert the n verb.
n form: put the verb "be" at the beginning。

use the auxiliary verb "do" to ask ns。

use "does" for third person singular。

and revert the n verb.
XXX XXX: It seldom snows here。

He is always ready to
help others。

n XXX.
2.Past Simple:
n: XXX.
XXX: ago。

yesterday。

the day before yesterday。

last week。

last year。

last night。

last month。

in 1989.just now。

at the age of 5.one day。

long long ago。

once upon a time。

etc.
Basic structure: the verb "be" or the past tense of the n verb.
Negative form: was/were + not。

add "didn't" before the n
verb and revert it.
XXX: put "was" or "were" at the beginning。

use the past tense of the auxiliary verb "do" to ask ns。

and revert the n verb.
XXX XXX: She often came to help us in those days。

I didn't know you were so busy.
三、现在进行时：
现在进行时表示正在进行的动作或行为，常用时间状语有now、at this time、these days等。

基本结构为be动词
（am/is/are）+动词ing形式，否定形式为be动词+not+动词ing形式。

一般疑问句需要把be动词放在句首，例如“How are you XXX?”，“He is doing well in his lessons。

”
四、过去进行时：
过去进行时表示过去某段时间或某一时刻正在进行的行为或动作。

常用时间状语有at this time yesterday、XXX或以when引导的谓语动词是一般过去时的时间状语等。

基本结构为was/were+动词ing形式，否定形式为was/were+not+动词ing形式。

一般疑问句需要把was或were放在句首，例如“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：
现在完成时表示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。

常用时间状语有recently、lately、since…for…、in the past few years等。

基本结构为have/has+过去分词，否定形式为
have/has+not+过去分词。

一般疑问句需要用have或has作为句首，例如“I've written an article.”，“The countryside has changed a lot in the past few years.”
六、过去完成时：
过去完成时表示以过去某个时间为标准，在此之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”。

常用时间状语有before、by the end of last year（term、month等）等。

基本结构为had+过去分词，否定形式为
had+not+过去分词。

一般疑问句需要把had放在句首，例如“Had you finished your homework before you went to bed last night?”，“She had already left by the time we arrived.”
By the end of last month。

we had XXX
XXX XXX future。

XXX。

next day/week/month/year。

soon。

in a few minutes。

by。

and the day after tomorrow can be used
with this tense。

The basic structure of the future tense is
am/is/are/going to + do or will/shall + do。

In negative form。

use was/were + not or add didn't before the main verb。

In ns。

use be
at the beginning of the sentence or move will/shall to the beginning.
For example。

"They are going to have a n with us in studies" or "It is going to rain."
XXX is used to talk about events that were planned or expected to XXX such as the next day/morning/year。

the following month/week。

etc。

can be used with this tense。

The basic structure of the past XXX is was/were/going to + do or
would/should + do。

In negative form。

use was/were + not +
going to + do or would/should + not + do。

In ns。

use was or were at the beginning of the sentence or move would/should to the beginning.
For example。

"He said he would go to Beijing the next day"
or "I asked who was going there."
XXX XXX such as by the time of。

by the end of + a future time phrase。

or by the time + a clause can be used with this tense。

The basic structure of the future perfect tense is be going
to/will/shall + have done.
For example。

"By the end of next month。

I will have finished my project."。