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MODALS AND THEIR FUNCTIONS. Obligation, necessity  must  have to  ought to  need.

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Presentation on theme: "MODALS AND THEIR FUNCTIONS. Obligation, necessity  must  have to  ought to  need."— Presentation transcript:

1 MODALS AND THEIR FUNCTIONS

2 Obligation, necessity  must  have to  ought to  need

3 advice  should (not)

4 lack of obligation  don't have to  don't need to  needn't

5 prohibition  mustn't  can't  ought not to  shouldn't

6

7

8 CHOOSES HIMSELF IS TOLD TO OBLIGATION LACK OF OBLIGATION PROHIBITION

9 ability, possibility  can

10 speculation  must  may (not)  might (not)  could  can`t

11 TO EXPRESS OUR GUESSES WE USE MODAL VERBS FOR SPECULATION. To use them correctly you should consider two questions: TO EXPRESS OUR GUESSES WE USE MODAL VERBS FOR SPECULATION. To use them correctly you should consider two questions: How sure are you in your guess? What time does your guess refer to?

12 HOW SURE YOU ARE IN YOUR GUESS? CCCCERTAINLY TRUE MUST PPPPOSSIBLY TRUE COULD, MAY, MIGHT PPPPOSSIBLY FALSE MAY NOT, MIGHT NOT CCCCERTAINLY FALSE CAN`T

13 WHAT TIME DOES YOUR GUESS REFER TO? PRESENT PAST FUTURE (at the moment) (usual or unknown) PROGRESSIVE INFINITIVE PERFECT INFINITIVE SIMPLE INFINITIVE BE + V ING HAVE + V 3 V


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