What is the formula of English grammar?

Sentences should be composed of words, and there are ten kinds of English parts of speech: notional words as the components of sentences, names, generations, verbs, numbers, descriptions: crowns, quotations, conjunctions, exclamation points, and function words attached or conveyed. Mastering the function of part of speech is very useful when making sentences.

2, preposition jingle:

Really? Go in, come out and go in? Outside, beside it, near it. Really? Go. Is there one down there? Below, above is above, below is below.

3, affirmative sentences into general questions:

Have and be begin sentences, and other auxiliary words begin. Time and person change from do, leaving only the prototype of verbs. There are several predicate auxiliary words, and the first auxiliary word is the first sentence.

4, positive sentences into negative sentences:

Put not before negative words, and put it after be and have. Do should be added to other verbs, followed by not, time and person change from do, and the prototype of the verb is always retained. If the predicate has many auxiliary words, not follows the first auxiliary word.

5, the possessive case of nouns:

Nouns are just variables, regardless of subject and object. Humans and animals, variable possessive case. Adding s after (') is equivalent to "de" in Chinese. Time, distance, etc. And become possessive.

6. Nouns become plural:

The singular was changed to the plural, and an "S" was added. Add "s" and then "e" after the following ending nouns: pronunciation [∫][t∫][s] and [z], or when consonants add "o". When some nouns become plural, we should pay attention to the change of suffix: the letter before "Y" is a consonant, and "Y" is always changed to "IE"; When encountering "f/fe", it is sometimes necessary to change the minority nouns of "ve" irregularly, especially by rote.

7. Abbreviations of all prepositions before time nouns:

In should be used before a week, not a day ago. Use "on" when meeting an appointment and "in" in the morning and afternoon. If you want to say a morning and an afternoon, you can only use on for in. Use at midnight and dusk, and use at dawn. Also before time, it should be said "bad" and "past".

Extended data:

The simple present tense indicates the present state, frequent or habitual actions, the subject's personality and ability, etc.

1. time adverbial: always, naturally, often, sometimes, every week (day, year, month? ), once a week (day, year and month? ), Sunday (Monday ).

2. Basic structure: subject +be/do+ others; If the subject is singular in the third person, the verb should be singular in the third person.

Negative form: subject +am/is/are+not+other (if the predicate verb in this state is an action verb, add don't before it, if the subject is a third person singular, use not and restore the action verb at the same time).

General problem: put the be verb at the beginning of the sentence; Ask questions with the auxiliary verb do. If the subject of the third person is singular, use does. Restore action verbs at the same time.