The passive voice structure of English present progressive tense? It's like be + being done

Am is are + doing
Passive am is are + be + done

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1. When do interrogative sentences and negative sentences return to their original forms I want to know under what tense the verbs in interrogative and negative sentences are restored to their original forms? Under what tense do verbs in interrogative and negative sentences need not be restored Which words must be followed by the original verb form?
2. How do verbs change in interrogative sentences and negative sentences Do the verbs in interrogative sentences and negative sentences basically change into their original forms? (excluding special cases) Or according to the tense of the sentence? Do you keep the verbs in their original form when you use do and does?
3. How do verbs change in interrogative and negative sentences?
4. In which interrogative sentence should the verb be reduced Please give some examples at the beginning of "does, can" and "special questions" to explain in which sentence the verb should be restored,
5. Is it suitable for negative sentences and interrogative sentences
6. How many kinds of progressive tense are there in all
7. The difference between be interrogative sentence and general interrogative sentence Are you speak chinese? Do you speak chinese? What's the difference? It means the same Why is it wrong
8. When the be verb in a declarative sentence is a notional verb, how to change it into a general question or a special question? Please explain Tom is (smart almost 1.75 meters) Wrong. Tom is (smart, almost 1.75 meters.) asking questions in brackets
9. What is the be verb in interrogative sentences I always thought it was linking verb But today I read the grammar book published by Pearson. It says that it is helping verb·· Is that so? Is the be verb in declarative sentences such as I am a student linking verb? Oh, that means there should be no copulars in interrogative sentences~
10. How to change a general question,
11. How to form the present continuous tense in English
12. The structure of English present progressive tense It's better to have a simple example, Sheila
13. What are the meanings and structures of the present continuous tense in English?
14. The present continuous tense in English The basic usage of the present continuous tense
15. English (present continuous tense) Related exercises 1、 Write the present participle of the following verbs 1.play 11.fly 21.run 2.read 12.write 22.put 3.see 13.dance 23.get 4.clean 14.live 24.sit 5.study 15.come 25.cut 6.go 16.make 26.swim 7.sing 17.like 27.stop 8.buy 18.have 28.begin 9.say 19.love 29.shop 10.eat 20.take 30.lie 2、 Fill in the blanks with the correct form of the verbs given 1.The boy ________ _________ (draw) a picture now. 2．I ____ _____ (read) English now. 3．He ______ _______ (go) to the park now. 4.My mother _______ __________ (cook) some nice food now. 5.They ________ ____ (not ,water) the flowers now. 6.We ______ _______ (have) supper now. 7.My mother __________ ________ (clean) the room now. 8．What _____ you ______ ( do ) now? 9．Listen!Some girls _______ ________ (sing) in the classroom. 10．Look!They _______ ________ (have) an English lesson. 11．Look!the girls ________ ________ (dance) in the classroom. 12．What is our grandmother doing?She _______ __ (listen) to music. 13．______ Helen __________ (wash)clothes?Yes,she is. 14．We ________ ________ (have) an English class. 15．What ________ they ______ (do) They _______ ________ (sit) in the park Speed, please. It's OK to write part of it
16. Help to speak English in the present continuous tense I didn't understand in class. I'm good at speaking. I'll get extra marks
17. How to write English words in the present continuous tense
18. English present continuous tense The classic way to find the present continuous tense
19. What's the difference between the present continuous tense and the general future tense in English?
20. In English, the present continuous tense means future arrangement