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MODAL VERBS. Only used in one form ( no past, no –ing form, no –s in 3rd person singular) never conjugated Always followed by a main verb in the base.

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Presentation on theme: "MODAL VERBS. Only used in one form ( no past, no –ing form, no –s in 3rd person singular) never conjugated Always followed by a main verb in the base."— Presentation transcript:

1 MODAL VERBS

2 Only used in one form ( no past, no –ing form, no –s in 3rd person singular) never conjugated Always followed by a main verb in the base form Express an idea (possibility,necessity, obligation etc Always come before subject in interrogative sentences Negative : place not after the modal verb

3 CAN ABILITY/INABILITY I can play the piano. PERMISSION OR REQUEST Can I call you later? OPPORTUNITY TO DO SOMETHING/POSSIBILITY I´m free tonight so we can go out.

4 I You He She It We they + CAN - CAN´T CANNOT Verb in the base form + complements CAN – affirmative and negative forms Can´t/cannot indicate impossibility ATTENTION!

5 CAN – negative form I You He She It We You they CAN MAIN VERB IN THE BASE FORM + COMPLEMENTS + ?

6 COULD PAST OF CAN. MORE POLITE THAN CAN (REQUEST) Could you open the door, please? PAST ABILITY When I was young, I could ride a bike. POSSIBILITY I think we could have another Gulf war.

7 COULD – affirmative and negative forms I YOU HE SHE IT WE THEY + COULD -COULD NOT - COULDN´T MAIN VERB IN THE BASE FORM + COMPLEMENTS COULD NOT Suggests that it´s impossible for something to happen ATTENTION!

8 COULD – interrogative form I YOU HE SHE IT WE THEY COULD MAIN VERB IN THE BASE FORM + COMPLEMENTS + ?

9 MUST DEDUCTION OR CENTAINTY That must be Jerry, they said he is tall and has red hair. OBLIGATION (“must” involves the speaker´s authority or opinion) You must go to bed, said her mum

10 MUST – affirmative and negative  + MUST - MUST NOT MUSTN´T MAIN VERB IN THE BASE FORM + COMPLEMENTS

11 MUST NOT = MUSTN´T PROHIBITION You must not swim in that river, it is full of crocodiles

12 MUST - interrogative  MUST MAIN VERB IN THE BASE FORM + COMPLEMENTS + ?

13 MAY Possibility He may run the marathon this year Polite permission or request May I go now? Yes, you may

14 MAY – affirmative and negative forms  + MAY - MAY NOT MAIN VERB IN THE BASE FORM + COMPLEMENTS THERE IS NO ABBREVIATION FOR MAY NOT ATTENTION!

15 MAY - interrogative  MAY MAIN VERB IN THE BASE FORM + COMPLEMENTS + ?

16 MIGHT To say that you are not sure that something is going to happen She might come to my house later.

17 MIGHT – affirmative and negative forms  + MIGHT - MIGHT NOT MAIN VERB IN THE BASE FORM + COMPLEMENTS IT´S NOT USUALLY USED IN INTERROGATIVE FORM. ATTENTION!

18 MAY x MIGHT x COULD

19 HAVE/HAS TO OBLIGATION ( based in a law or rule) I have to wear a uniform in my school

20 DON´T/DOESN´T HAVE TO It is not necessary to do something, you can do it if you want but it is not necessary She doesn´t have to finish her composition tonight

21 HAVE/HAS TO – affirmative form She He it HAS TO MAIN VERB IN THE BASE FORM + COMPLEMENTS I YOU WE THEY HAVE TO MAIN VERB IN THE BASE FORM + COMPLEMENTS

22 HAVE TO – interrogative form He She It DOES HAVE TO MAIN VERB IN THE BASE FORM + COMPLEMENTS + ? I YOU WE THEY DO HAVE TO MAIN VERB IN THE BASE FORM + COMPLEMENTS + ?

23 SHOULD ADVICE SUGGESTIONS CRITICISM EXPECTATIONS This film should be good. You should stop smoking. You shouldn’t have done it!

24 SHOULD – affirmative and negative forms  + SHOULD -SHOULD NOT - SHOULDN´T MAIN VERB IN THE BASE FORM + COMPLEMENTS

25 SHOULD – interrogative form  SHOULD MAIN VERB IN THE BASE FORM + COMPLEMENTS + ?

26 HAD BETTER GIVE ADVICE It is stronger than should and means that if the person doesn’t follow the advice, s/he can have negative consequences. You had better not eat so much. The doctor told you that you are overweight.

27 HAD BETTER – affirmative and negative forms  + HAD BETTER ´D BETTER - HAD BETTER NOT ´D BETTER NOT MAIN VERB IN THE BASE FORM + COMPLEMENTS IT´S NOT OFTEN USED IN THE INTERROGATIVE ATTENTION!

28 OUGHT TO Advice or recommendations Assumption or expectation Strong probability(often with the idea that something is deserved) You ought to stop smoking. Jim ought to get the promotion. This stock ought to increase in value. Mark ought not drink so much

29 OUGHT TO – affirmative and negative forms  + Ought to - Ought not Main verb in the base form + complements NOT USED IN INTERROGATIVE ATTENTION!

30 SHALL SUGGESTION Shall we go to the movies? ONLY USED IN INTERROGATIVE AND AFFIRMATIVE 1ST PERSON SINGULAR AND PLURAL

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