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Published byGabriella Biss Modified over 9 years ago
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By: Erika Guadalupe Umbral Hernández
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The verbs can, could, may, might, must, needn´t, ought to, should, shall, will are Modal auxiliary verbs. This small group of verbs give additional information about the mood of the main verb that follows it. They help to incorporate or add the level of necessity, obligation, requirement, recommendation, certainty, and possibility. Definition
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They are before other verbs. She can swim They have the same form in all persons. Modal Verbs do not take “- s “ in third person. I will call you tomorrow She will call you tomorrow They are followed by the root form of another verb She must study for her exams NOT studies They do not for all the tenses Definition
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We make the negative form of modal verbs by putting NOT after the modal verb, or we use contractions. For example: Cannot------------Can´t Could not --------Couldn´t Might not---------Mightn´t Must not----------Mustn´t Need--------------Needn´t You Musn´t park here Should-------------Shouldn´ won't is the contracted form of will no Sha n't is the contracted form of Shall not May doesn´t have contracted form. The correct form is May not Ought to lose the “to” in negative form. We say Ought not Negative Form
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When we form questions the modal verbs are before the subject follow the main verb Modal verbs form questions without the auxiliary verb do/ does. Can you help me, Dad? Modal Subject Main Verb Verb Interrogative Form
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Can We use Can to express: AbilityBetty can Speak French PermissionCan I go out, Mom? RequestCan I have some more cake, please? We use Can´t when we think that something is impossible You´ve just had dinner. You can´t be hungry already ( It is impossible that you´re hungry ) Bonjour monsieur
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Could It is the past tense of can, but also it has future meanings Past ability: It could swim fast when I was young future meaning: It could rain this afternoon (it is possible that there will be) Could has the same uses that Can to express AbilityWhe I was young,I could see better PermissionCould I go to the party on Sunday? RequestCould you help me, pelase?
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May The modal Verb May is more formal than Can. We use it to ask permission to do something when we do not know the other person very well. May I show you something, Sir? Formal Can I show you something, Dad? Informal
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Must. It shows that it is necessary for someone to do something I must pass the entrance examination to study in this school Also we use must to make a deduction from information that we know it is true .Certainly: You have been travelling all day, You must be tired
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Must Besides we use must to express an obligation You must be here before midnight. On the other hand Mustn´t shows that it is wrong to do something. It expresses prohibition. You musn´t go on. Wait your turn.
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Should This modal verb is used to express advice or recomendation. You should focus more on your family and less on work When you go to Mexico city, You should, visit public square. Should Vs Must: Should gives definite advince. Must however shows a strong necessity. You should stop smoking = it would be a good idea You must stop smoking= it´s necessary to do it
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Might We use might to make a deduction when we don´t know to have enough information to be sure. It is possible that there will be true. Might is considerated the past tense of may, but it is used in present or future statements. Possibility: Where is my purse? It might be in the living room.
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Ought to It is considerated the synonymuos of should It is used to advise or make recomendations You ought to to go with someone to the party The negative form Ought not is used to advince against doing something They ought not carry so much cash while travelling.
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Needn´t This modal verb shows that it isn´t necessary to do something. It express a lack of necessity. You needn´t buy more bread. We have a lot. Whe we want to know if its necesary to do something, we ask questions with must, the negative answer is needn´t not musn´t Must I clean all the house? No, you needn´t. Not musn´t
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Shall The use of shall as a form of will in modern English is decreasing. It is more common to hear it in the United Kingdom. It is usually used in the United States within formal situations. It is more common to use shall only with I or We We use Shall to express an offer Shall I help you clean the house? Shall We dance?
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Will We use will to ask someone to do something for us (request). Willl you help me fix the car, please? When we make a voluntarie promise to do something I’ll call you tomorrow Salir
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