Questions: What is the dialogue all about? Notice the highlighted words in the dialogue. What do you think are these words?
A modal is a type of auxiliary (helping) verb that is used to express: necessity , obligation , certainty , and prohibition .
Modals - 'must' and 'mustn’t We can use must and mustn’t to express certainty, necessity, or strong recommendation. Examples: 1. They must leave immediately. (necessity) 2. I must do my homework. (obligation) 3. This must be the right address! (certainty) 4. We mustn't speak when the teacher's speaking. (prohibition)
Identify the following expressions as necessity , obligation , certainty , or prohibition . You must study hard. This must be the correct answer. I must take some medicine for this cough. I mustn’t drink that. Kids mustn’t bully their classmates.
Identify the following expressions as necessity , obligation , certainty , or prohibition . 6. Police men mustn’t drink on duty. 7. I must go to the grocery today I have nothing to eat. 8. I must wear glasses when reading. 9. You got a salary raise! You must be very happy! 10. You must stop when the traffic lights turn red.
Have to / has to are expressions used to indicate obligation or necessity, similar to the modal verb “must.” -The choice between “have to” and “has to” depends on the subject of the sentence. “Have to” is used with “I,” “you,” “we,” and “they,” while “has to” is used with “he,” “she,” and “it”.
have to (with plural subject) has to (with singular subject)
“Have to” and “has to” in the present tense: I have to: I have to work late tonight. He has to: He has to take his medicine every day.
“ Can ” and “ can’t ” - are modal verbs in English used to express ability, possibility, permission, and requests. “ Can ” indicates ability or permisiion, while “ can’t ” (or “cannot”) indicates inability or prohibition.
“ Can ” Ability: I can swim. Possibility: It can rain later. Permission: You can go now. Request: Can you help me with this?
“ Can’t ” (or “cannot”) Inability: “I can’t ply the piano.” Prohibition: “You can’t park here.” Imposibility: “That can’t be true.” Request: “Can’t you be quiet for a moment?”
Oral Drill
Oral Drill
Choose the correct modal from the box to complete the sentence. Drivers ________________ always stop on red lights. If you are going to drive, you _______________ consume alcoholic drinks. Students _______________ review their lessons each day of the class. must can have to mustn’t can’t
Choose the correct modal from the box to complete the sentence. 4. Guests __________ dress appropriately when attending formal events. 5. Children ____________ play with matches. 6. People ____________ smoke in indoor public places. must can have to mustn’t can’t
Choose the correct modal from the box to complete the sentence. 7. You __________ write your output without doing research. 8. Students with ID ___________ enter the library. 9. We __________ wear mask when going outside. 10. You __________ stay late during weekdays. must can have to mustn’t can’t
Choose the correct modal from the box to complete the sentence. Drivers must always stop on red lights. If you are going to drive, you mustn’t consume alcoholic drinks. Students have to review their lessons each day of the class. must can have to mustn’t can’t
Choose the correct modal from the box to complete the sentence. 4. Guests must dress appropriately when attending formal events. 5. Children can’t play with matches. 6. People can’t smoke in indoor public places. must can have to mustn’t can’t
Choose the correct modal from the box to complete the sentence. 7. You can’t write your output without doing research. 8. Students with ID can enter the library. 9. We must wear mask when going outside. 10. You mustn’t stay late during weekdays. must can have to mustn’t can’t
Replace the underlined phrases with the appropriate modal verb. Write your answer on a separate sheet of paper. 1 . You are not permitted to say anything about it. 2. Well, you are advised to buy that CD set from the greatest hits of Queen. 3. Dog owners are not allowed to bring their pets inside the new restaurant in town. 4. The situation there is indeed serious. We really need to stay here. 5. There is a meeting on the first floor, Patrick is not allowed to make noise. must mustn’t can have to mustn’t can’t
Replace the underlined phrases with the appropriate modal verb. Write your answer on a separate sheet of paper. 1 . You mustn’t say anything about it. 2. Well, you have to buy that CD set from the greatest hits of Queen. 3. Dog owners can’t bring their pets inside the new restaurant in town. 4. The situation there is indeed serious. We must stay here. 5. There is a meeting on the first floor, Patrick is mustn’t make noise. must mustn’t can have to mustn’t can’t