Modal verb affirmative sentence How to use interrogative sentences

The affirmative sentence uses the verb form, such as the subject is in the singular third person, and s es is added after the verb.

The interrogative sentence uses the auxiliary verb do, the subject is the singular third person does, and the s es after the action verb are removed.

The negative sentence is with the help of don't in front, in the singular third person, with the help of doesn't, the removal of s es after the action verb.

he works in a factory. we work in a factory .

does he work in a factory ? do you work in a factory ?

he doesn't work in a factory. we don't work in a factory .

When the subject is a third person singular number:

The verb becomes the corresponding third person singular form.

Affirmative sentence: subject + verb third person singular form + other.

Negative sentence: subject + doesn't't + verb form + other.

General interrogative sentences: does + subject + verb form + other.

affirmation: yes, subject + does; Negative: no, subject + doesn't't。

Special question sentences: special question words + general question sentences.

1. When there is a verb of be (am is are were) in the sentence, including the structure of "system table" and the continuous tense, the negative sentence is formed by adding not after the be verb, that is, "the subject is not other components." ”；

When changing a general interrogative sentence, it is enough to mention the be verb before the subject, and the formula is "be the subject of the predicate ......Such as:

Declarative sentence: there was a modern building here last year

Negative sentence: there was not a modern building here last year

General question: was there a modern building here last year?

When there is no be verb in the sentence, but there is a modal verb (can may must, etc.), add not after the modal verb when changing the negative sentence, and the negative sentence structure is "subject modal verb not action verb original form other components." ”；When changing a general interrogative sentence, just put the be verb in front of the subject, and the formula is "modal verb subject action verb original form Other components?" ”.

For example: declarative sentence: he can buy you a camera in sichuan

Negative sentence: he cannot buy you a camera in sichuan

General question: Can he buy you a camera in sichuan?

When there is neither a be verb nor a modal verb in the sentence, it is necessary to choose different (tense) auxiliary verbs according to the specific tense and person, in this case, the "formula" of the general interrogative sentence can be summarized as "auxiliary verb subject action verb (most tenses use the original form) The rest of the components?" (In interrogative sentences in the perfect tense, the verb uses a past participle); In the above three cases, when you want to change a special question sentence, use the formula "question word general question sentence? That's it.

1. General interrogative sentences containing verbs of be or modal verbs.

Be or modal verbs and not can be abbreviated forms, mainly isn't, aren't, wasn't, weren't, weren't, can't, mustn't, needn't, etc.

Example: (1) Question: Are these your English books?

Ken: Yes, they are

No: No, they aren't

2) Question: Can you speak English?

Answer: Yes, I can

No: no, I can't

2. General interrogative sentences containing action verbs (or verbs in the sense of the real sense).

Auxiliary verbs are also commonly abbreviated, mainly don't, doesn't, didn't, etc.

Example: Question: Do your parents like English?

Ken: Yes, they do

No: No, they don't

A general interrogative sentence is a question that requires yes or no, and its composition is divided into three types:

1. If you have a verb be, put the verb be at the beginning of the sentence, e.g. is he a student?

2. If you have an action verb, add the auxiliary verb do did did at the beginning of the sentence, e.g., did you go to the cinema?

3. Contain modal verbs, put modal verbs at the beginning of the sentence, e.g. can you swim in the sea?

An affirmative sentence is a declarative sentence. Negative sentences, like general interrogative sentences, are divided into three situations:

1,Be verb after add , action verb before auxiliary verb negative form do not(don't), does not (doesn't), did not (didn't), did not (didn't). 3. Add not after the modal verb.