All tenses in junior high school English All tenses in junior high school English have sentence making and structure

All tenses in junior high school English All tenses in junior high school English have sentence making and structure

English tenses can be divided into 16 types: the general present, the general past, the general future, the past future tense, and their progressive, perfect and perfect progressive tenses
Here are eight basic tenses in English. The other tenses are based on these eight tenses
1、 The present tense
1. Concept: the action or behavior that often and repeatedly occurs and the present situation
2. Adverbials of time: always, usually, of course, sometimes, every week (day, year, month ), once a week, on Sundays,
3. Basic structure: the original form of the verb (for example, the subject is the third person singular, and the verb should be changed to the third person singular)
4. Negative form: AM / is / are + not; if the predicate in this tense is an action verb, add don't before it; if the subject is the third person singular, use doesn't, and restore the action verb at the same time
5. General questions: put the verb be at the beginning of the sentence; use the auxiliary verb do to ask questions. If the subject is the third person singular, use does. At the same time, restore the action verb
6. It seldoms here
He is always ready to help others.
Action speaks louder than words.
2、 In the past tense:
1. Concept: action or state that happened at a certain time in the past; habitual and regular action and behavior in the past
2. Adverbials of time: ago, yesterday, the day before yesterday, last week, last (year, night, month ), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc.
3. Basic structure: be verb; past tense of action verb
4. Negative form: was / were + not; add didn't before the action verb and restore the action verb at the same time
5. General questions: put was or were at the beginning of the sentence; ask questions with the past tense did of the auxiliary verb do, and restore the action verb at the same time
6. She of cam to help us in those days
I didn't know you were so busy.
3、 The present continuous tense
1. Concept: refers to the action and behavior in progress at the present stage or when speaking
2. Adverbials of time: now, at this time, these days, etc
3. Basic structure: AM / is / are + doing
4. Negative form: AM / is / are + not + doing
Put the verb be at the beginning of the sentence
How are you feeling today?
He is doing well in his lessons.
4、 Past continuous tense
1. Concept: refers to the behavior or action that is happening or going on at a certain time in the past
2. Adverbials of time: at this time yesterday, at that time, or the predicate verbs guided by when are adverbials of time in the past tense
3. Basic structure: was / were + doing
4. Negative form: was / were + not + doing
Put was or were at the beginning of the sentence
At that time she was working in a PLA unit
When he came in, I was reading a newspaper.
5、 The present perfect tense:
1. Concept: the influence or result of the action that happened or completed in the past on the present, or the action or state that has started in the past and continues to the present
2. Adverbials of time: Recently, lately, since for… ,in the past few years, etc.
3. Basic structure: have / has + done
4. Negative form: have / has + not + done
5. General questions: have or has
I've written an article
The countryside has changed a lot in the past few years.
6、 Past perfect tense:
1. Concept: an action or behavior that happened before a certain time in the past, or an action completed before a certain action in the past, that is, the past
2. Before, by the end of last year (term, month ),etc.
3. Basic structure: had + done
4. Negative form: had + not + done
Put had at the beginning of the sentence
As soon as we got to the station, the train had left
By the end of last month. We had reviewed four books
7、 In the future:
1. Concept: the action or state of being that will happen and the intention, plan or preparation to do something
2. Adverbial of time: tomorrow, next day (week, month, year ),soon, in a few minutes, by… ,the day after tomorrow, etc.
3. Basic structure: AM / is / are / going to + do; will / shall + do
4. Negative form: was / were + not; add didn't before the action verb and restore the action verb at the same time
5. General questions: be at the beginning of the sentence; will / shall at the beginning of the sentence
They are going to have a competition with us in studies
It is going to rain.
8、 Past future tense
1. Concept: Based on a moment in the past and looking at the future from the past
2. Adverbial of time: the next day (morning, year ),the following month(week… ),etc.
3. Basic structure: was / were / going to + do; would / should + do
4. Negative form: was / were / not + going to + do; would / should + not + do
5. General questions: was or were at the beginning of the sentence; would / should refer to the beginning of the sentence
He said he would go to Beijing the next day
I asked who was going there .
9、 Future perfect tense:
1. Concept: an action or state that begins before a certain time in the future
2. Adverbial of time: by the time of; by the end of + time phrase (future); by the time + clause (future)
3. Basic structure: be going to / will / shall + have done
10、 Now complete continuous tense:
1. Concept: an action or state that begins before a certain moment in the past and continues until the moment of speaking
2. Basic structure: have / has + be + doing
The transformation of several common tenses
Several tenses in English can be converted to each other under certain circumstances. The following are some common forms of conversion:
11、 The conversion between the past tense and the present perfect tense
In the present perfect tense, the continuous verb can be used with the adverbial of a period of time, but the instantaneous verb can't. however, there are other expressions: ① the instantaneous verb can be used in the sentence pattern of "a period of time + ago"; ② the instantaneous verb can be changed into the corresponding continuous verb and phrase, which can be used with a period of time; ③ the instantaneous verb can be used in "it is + a period of time"+ In the sentence pattern of "since + general past tense", it means "since There has been (4) the instantaneous verb is used in the sentence pattern of "some time has passed since + general past tense"
A. He joined the League two years ago.
B. He has been in the League for two years.
C. It is two years since he joined the League.
D. Two years has passed since he joined the League.
12、 The conversion between the present tense and the present continuous tense
In the present tense, at plus a noun means "in a certain state", such as at work, at school, etc
Peter is at work, but Mike is at play.
Peter is working, but Mike is playing.
13、 The conversion between the present continuous tense and the general future tense
In the present continuous tense, go, come, leave, start, arrive and other verbs are often used with adverbials of time to indicate the action to be taken
The train is leaving soon.
The train will leave soon.
Sixteen tenses
General present tense, general past tense, general future tense, general past future tense;
Present continuous tense, past continuous tense, future continuous tense, past future continuous tense;
Present perfect tense, past perfect tense, future perfect tense, past future perfect tense;
The present perfect continuous, the past perfect continuous, the future perfect continuous, the past future perfect continuous