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Material Adicional Idiomas.

Modal Verbs: Obligation & Recommendation - To express: obligation, no obligation, prohibition and recommendation have to must should ought to SOURCE: http://perso.wanadoo.es/autoenglish/gr.must.p.htm. Material Adicional Idiomas. TYPE 1: Obligation: a) have to

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Material Adicional Idiomas.

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  1. Modal Verbs: Obligation & Recommendation • - To express: obligation, no obligation, • prohibition and recommendation • have to • must • should • ought to • SOURCE: • http://perso.wanadoo.es/autoenglish/gr.must.p.htm Material Adicional Idiomas.

  2. TYPE 1: Obligation: a) have to E.g. Maria has to go to Rome. She had to see a doctor. (Use only have to in verb tenses apart from the present simple). b) must E.g. You must see a doctor. (Must expresses more urgency than have to). TYPE 2: No Obligation don't have to E.g. He doesn't have to go.

  3. TYPE 3: Prohibition mustn't Eg. You mustn't insult people. TYPE 4: Recommendation a) should Eg. You shouldn't eat so quickly. b) ought to Eg. You ought to phone your mother. (Ought to is not used in the negative).

  4. Further links: http://www.ompersonal.com.ar/omgrammar/verbosmodales1.htm http://www.perfect-english-grammar.com/modal-verbs-of-obligation.html http://perso.wanadoo.es/autoenglish/gr.must.p.htm

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