Usage formula of be
I use am and you use are to connect him, her and it;
Is is used for singular nouns and plural nouns.
Change the question, go to the premise, and don't throw away the question mark at the end of the sentence.
It's easier to be negative. Don't forget it after you do it.
You can change your doubts and negatives, don't hesitate, the first sentence should be capitalized.
Usage of be verb: be (be/is/are/am/was/were)
Visual recognition system
The present tense I am, you are, he is, we are, you are, they are (abbreviation I am, you are, he is, we are, you are, they are), (negative abbreviation I am not, no, no), past tense I am. You are, he is, we are, you are, they are (past negative abbreviation is not, not' t), past participle is, present participle is.
English? Is it? It is a special verb; Some languages, such as Malay, don't? Is it? Such verbs.
Is it? Except for the prototype? Is it? In addition, there are seven other forms: am am, is, are, been, being, was, was and was.
In the sentence? Is it? It can be a main verb or an auxiliary verb.
Example comparison
When you take the initiative? Is it? It is a connective verb in nature, followed by nouns, adjectives, local adverbs or phrases as complements. For example:
1. This man is a science teacher.
This man is a science teacher.
Mary's new clothes are brightly colored.
Mary's new clothes are brightly colored.
I have been there before.
I have been there before.
My mother is watching TV in the room.
Mother is watching TV in the living room now.
These four sentences are declarative sentences and can be turned into interrogative sentences. The method is simple. Is it? Or auxiliary verbs can be reversed:
5. Is this man a science teacher?
6. Is Mary's new skirt colorful?
7. Have I been there before?
8. Is Mom in the kitchen now?
What time? Is it? To appear in imperative sentences, it must borrow auxiliary verbs? Do what? Or? No? Help, such as:
9. Don't be silly!
10. Be obedient!
1 1. Don't be silly!
Is it? There are two abbreviations, as follows:
12. He is not .../He is not. ....
13. You are not .../You are not. ...
But? Am+is not? There is only one abbreviation:
14. I didn't.
Someone used it? Isn't it? But this is not standard English.
Talked about it? Is it? Do you see the function of the subject verb now? Is it? What are the usages when used as auxiliary verbs?
1.？ Be+ present participle? Form a continuous tense, such as:
15. Tony's maid is cleaning his new car.
16. The children are playing in the field.
17. Samuel was eating when I came in.
18. We have lived here since 1959.
2.？ Modal verb +Be+ past participle? Form a passive voice, such as:
19. The money in her drawer was stolen.
20. Many good jobs are taken by foreigners.
2 1. David studied in Taiwan Province, but was trained as a language lecturer in the United States.
22. Can we find all the wonderful birds in our bird park?
The disobedient boy was told to stand outside the classroom.
24. Measures are being taken to reduce traffic jams during rush hours.
Dishonest students will be dealt with immediately.