The difference between present perfect tense, past perfect tense, present perfect continuous tense and past perfect continuous tense. When to fill in grammar, use the main table structure as an exampl

The difference between present perfect tense, past perfect tense, present perfect continuous tense and past perfect continuous tense. When to fill in grammar, use the main table structure as an example. definition

The future perfect tense is used to indicate actions that have been completed or continued before a certain time in the future. It is often used with before+ future tense or by+ future time, and can also be used with the present tense clause guided by before or by the time or by the end of phrase.

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Shall+have+ past participle is used in the first person, and will+have+ past participle can be used in all persons.

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A. state completion: it means that something will remain in this state until some time in the future. And finish it in the future.

B. Action completion: indicates the action that has been completed or the experience that has been gained before the future time or another future action.

They will have been married for 20 years by then.

You will have arrived in Shanghai by this time tomorrow.

Composition of future perfect tense

The future perfect tense consists of "shall/will+have+ past participle".

He will soon forget all about it.

It won't be long before he forgets all about it.

He is an important person now. He won't remember his old classmates.

Now that he is a man of status, he may not remember his old classmates.

Have you known Kevin 10 years next month?

You will know Kevin 10 years by next month, right?

Usage of future perfect tense

(1) means that it has been completed before a certain time in the future, and it often has an impact on a certain time in the future.

Pick me up at 8 o'clock, by which time I will have had breakfast.

Pick me up at 8 o'clock in the morning, and I will have finished breakfast by then.

By the end of this term, we will have learned 12 units.

By the end of this term, we will have learned 12 units.

By the time you get home, I will have cleaned the house thoroughly.

I will clean the house thoroughly before you go home.

(2) said speculation, equivalent to "must have done" structure.

I think you've heard of this.

I think you've heard.

I'm sure he has got the information.

I'm sure he will get the information.

(3) indicates that a state lasts until the time mentioned by the speaker.

On June 25th, we will be married for one year.

We will be married 1 year by June 25th.

The definition of "will" indicates subjective intention or plan.

Shall and will are often abbreviated as ll, immediately after the subject. The abbreviations of negative shall not and will not are shan and will not respectively. Basic sentence pattern

It means to make an objective arrangement or be instructed to do something. After+ verb prototype.

Be about to+ verb prototype, meaning to do something at once, can't be used with adverbials of tomorrow, next week, etc. in the future.

I/we will/will go. You/he/she/they are going.

Negative sentence: I/we should/won't go. You/he/she/they won't go.

Q: Shall I/We go? Will you/he/she/they go?

Short answer: (Ken) Yes, the subject should/will (No) No, the subject should/will not.

Special interrogative sentences: Generally, the future special interrogative sentences will put the interrogative words at the beginning of the sentence, after the general interrogative sentences (except the interrogative words that start with the interrogative word who when asking the subject).

-Why are you here on Sunday? Why are you here on Sunday? )

I have a meeting on Sunday (I have a party on Sunday).

(Give specific answers to special questions)

General interrogative sentences: be or will is mentioned at the beginning of a sentence, and some are changed to any and then to or, and the first person and the second person are called interchanges.

We are going to have an outing this weekend. -Are you going for an outing this weekend?

Passive sentence: will/shall+be+v.ed (transitive verb past participle)

This letter will be mailed tomorrow.

This letter will be mailed tomorrow.

If we break the rules, we will be punished.

If we break the rules, we will be punished.

Note: will and shall express different "wills" in sentences. When the subject of a sentence is the first person (I), it means my independent "will", and many people may ask what is independent will. Here's an example:

I'll know tomorrow. I will get to the bottom of this matter.

When using will in this sentence, the subject I (I) has a strong will, indicating that I want to get to the bottom of the matter and that I will work hard for it. When the first person uses shall, it is an ordinary sentence without the will of the subject.

I'll be back in ten minutes. This sentence simply means that I will be back in 10 minutes. No other meaning.

I'll be back in ten minutes. And this sentence has a different artistic conception. I will be back in 10 minutes, which means that even if I am delayed, I will try to be back in 10 minutes.

Shall is the same in the second and third person as will is in the first person. It only has the will among two or three people, but it should have the will of the "speaker". Not the will of the subject.

He will be rewarded. He will be rewarded.

Analyzing the deep meaning of this sentence, I say that shall has the speaker's strong will when used in the second and third person. The "speaker" will of this sentence is that he will be rewarded, and even if he is not rewarded, the "speaker" will try his best to make him get rewarded.

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●will is often abbreviated as' ll' and written together with the subject, such as: I'll, she'll, he'll, it'll, we'll, you'll, they'll.

If you use will you… in general interrogative sentences? The short answer must be "Yes, I do" or "No, I don't"; ; If you use it, I should ... Its short answer must be "Yes, I will". Or no, I won't. ..

The progressive tense indicates the future and is used with instantaneous verbs.

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the simple future tense

The general future tense indicates the action or existing state that will happen at a certain moment in the future, and also indicates the action that will happen frequently or repeatedly in the future. Often used with adverbials to indicate the future time. * * * * There are five common expressions, which are summarized as follows:

Express by will or should.

The form of "auxiliary verb will or shall+ verb prototype" indicates what will happen in the future, and is used to solicit opinions from the other party or to express a polite invitation. Will is used in all person in spoken language, and shall is often used in the first person in written language. In fact, you can also use your will. For example:

1. Tomorrow is Sunday. Tomorrow is Sunday.

The rain will stop soon.

Shall we go there at five o'clock? Shall we go there at five o'clock?

Would you please open the door? Would you please open the door?

Expressed as unstructured.

"be going to+ verb prototype" is used to indicate the action that will happen in the near future or in advance and the sign that something will happen, meaning "intend; It is necessary. " For example:

1. We will meet outside the school gate. We are going to meet at the school gate.

2. Look! It will rain. Look! It will rain.

Express in the present continuous tense

Verbs (e.g. go, come, go, start, arrive, etc. ) indicates position shift and can be used to indicate the future tense in the present continuous tense. For example:

1. Uncle Wang is coming.

They are going to Beijing. They will go to Beijing soon.

Express in the simple present tense

In time adverbial clauses and conditional adverbial clauses, actions expected to happen according to regulations or schedules can be expressed in the future tense. For example:

1. The new $ TERM started school on August 29. The new term begins on August 29th.

If it doesn't rain tomorrow, we will go out for a picnic.

Use the structure of "be+ infinitive" or "about to+prototype"

For example:

He will visit Japan next year. He will visit Japan next year.

They are leaving soon. They are leaving soon. ) They will leave soon.

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First, the common structure.

1, will/shall+ verb prototype (negative sentence with not after will/shall)

Generally, this method simply represents the action or existence state that will happen at some time in the future. Will is used for various names; Shall is only used in the first person. For example:

I will visit him next week. I will visit him next week.

What time shall we go there tomorrow? What time shall we go there tomorrow?

2. The prototype of the verb to be removed

Be going to is equivalent to an auxiliary verb (in which be is called and the number changes), which forms a predicate together with the prototype of the following verb. Used to indicate the action or state of being that will happen in the near future, as well as planned, arranged and planned things. For example:

There will be a football match this afternoon. There will be a football match this afternoon.

I'm going to the park. I want to go to the park.

Second, the common structure.

1, used in "I expect, I am sure, I think, I want to know the object clause".

Don't worry about the exam. I believe you will pass.

Don't worry about the exam, I'm sure you'll pass.

2. Used in imperative sentences and declarative sentences.

Work hard and you will succeed.

If you work hard, you will succeed.

3. Used with adverbial clauses indicating time or conditions.

I will let you know as soon as he arrives.

I will let you know as soon as he arrives.

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(1) The general future tense indicates an action or situation that will happen.

I will arrive tomorrow. It is best to use shall when the subject is in the first person.

Are you free tonight? Are you free tonight?

We won't be busy tonight. We are not busy tonight.

(2) In general future tense sentences, sometimes there are adverbials indicating future time, and sometimes there are no adverbials indicating time. At this time, it is necessary to judge from the meaning whether it refers to future actions or situations. For example:

Will she come? Will she come?

(3) In interrogative sentences with the first person me or us as the subject, the auxiliary verb shall is generally used. At this time, either ask the other person's opinion or ask a situation (b):

A.where shall we meet? Where shall we meet?

B.do we have classes tomorrow? Do we have classes tomorrow?

In this kind of problem, many people use will in recent years, especially in America. For example:

How do I get there? How can I get there?

(4)be going+ verb prototype

A. express plans, intentions and things to do. For example:

We are going to build a building here. We are going to build a building here.

How are you going to spend your holiday? How are you going to spend your holiday?

B. indicate what will happen or is sure to happen. For example:

I think it is going to snow. I think it is going to snow.

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The simple future tense indicates the action or state at a certain moment in the future. In addition to "shall (first person), will (second and third person)+verb prototype", there are the following forms.

1."Being going to+verb prototype" refers to something that will happen or will happen in the near future. For example:

It will rain.

We will have a meeting today. We have a meeting today.

Go, come, start, move, sail, leave, arrive, stay, live, fly, etc. It can be used to express the action that will happen as planned (marching verb), for example, I am going to Beijing.

3. "Be to+verb prototype" means what will happen as planned or asking for the other party's advice. For example:

Shall we continue this work? What should we continue to do?

The boy will go to school tomorrow.

4. "about to+verb prototype" means the action that will happen soon, which means: soon. Generally, it is not an adverbial of time. For example:

We're leaving. We're leaving right away.

Simple present tense of some words, such as coming, going, leaving, arriving, starting, getting, staying, living, flying, etc. , can also indicate the future.

The meeting starts at five o'clock. The meeting starts at five o'clock.

He got off at the next stop. He got off at the next stop.

Six. The predicate "attributed to" means "attributed to ..." It can also indicate the future tense.

PS: the difference between what will be and what will be.

The difference between what will be and what will be.

Going to and will can both mean what will happen and do something, but they have the following differences:

1.be going to means what will happen in the near future, and will means what will happen in the future, for example:

He is going to write a letter tonight.

One day he will write a book.

Being refers to judging what will happen in the future subjectively, and Will refers to what will happen in the future objectively.

He is very ill. He's dying.

He will be twenty years old.

3.going to means "planning and preparing", but will doesn't, for example:

She is going to lend us her book.

He will be here in half an hour.

4. In the main clause of a conditional clause, you generally don't need to be going, but use will, such as:

If a wild animal attacks you, I will be with you to help you.

pay attention to

Be to and will are slightly different in meaning and usage. Being going to often means thinking ahead; Will is more willing and determined. Sometimes the two are not interchangeable. For example:

She is studying hard and preparing for the exam. She is studying hard and trying to take the exam. (will not be replaced by will)

From now on, Lord

The subject is subordinate to the present, that is to say, in the adverbial clauses of time, condition and adverbial clauses, if the main clause is the general future tense, the clause will replace the general future tense with the general present tense. From now on, Lord

There are four common situations:

First, the main clause of the adverbial clause of time is the simple future tense, so the clause is often used in the simple present tense.

For example, when I grow up, I will become a nurse and take care of patients.

I want to be a nurse and take care of patients when I grow up.

If the main clause is imperative, then the clause usually uses the simple present tense.

Don't laugh at me when I make a mistake.

Don't laugh at me when I make mistakes.

3. If the main clause is the simple present tense with modal verbs, use the simple present tense in the clause as needed.

You should keep quiet when you are in the reading room.

You should keep quiet in the reading room.

If the conditional adverbial clause of if encounters indirect and direct transformation, the imperative sentence should be not to. ....

Such as; She said not to close the window.

Common conjunctions in adverbial clauses of time are: as soon as possible, when, while, as, till, etc.

What the Lord said from now on is that in the master-slave complex sentence with time adverbial clause and conditional adverbial clause, if the tense of the main sentence is the general future tense, then the clause should use the general present tense. For example:

I'll tell him about it when he comes.

If it is fine tomorrow, we will go for an outing.

If the tense of the main clause is the past future tense, then the clause should use the general past tense. For example:

He said he would try again if he had the chance.

I know he will help me if he is free the next day.

The main signs are: if, never, never, when and as soon as possible.

Edit the adverbial of this time

1) Tomorrow, the day after tomorrow, tomorrow morning/afternoon/evening.

2) Next year/week/month/hour/day/century

3) within+a period of time

4) In the future

This afternoon/Sunday/evening

from now on

One day, one day in the future

8) Soon

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It consists of will and verb prototype. When the subject is the first person, you can also use shall and verb prototype.

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He will get married. He will get married soon [1]

She will have a daughter. She will have a daughter.

This cat will have a master. This cat will have a master.

This dog will have a house. This dog is going to have a nest.

I will be at home. Call me tonight and I'll be at home.

I will do better next time. I will do well next time.

The car won't start. The car won't start.

Oil and water do not mix. Oil and water do not mix.