MUST, MUSTN’T AND HAVE TO
A concept map about MUST, MUSTN’T and HAVE TO designed to explain how to express obligation, prohibition and lack of necessity in English grammar. The map shows how MUST expresses obligation, MUSTN’T expresses prohibition, and DON’T HAVE TO means that something is not necessary. It also presents the structures used to form affirmative, negative and interrogative sentences with MUST and HAVE TO, together with short answers and practical examples. A useful English grammar summary for studying, reviewing and understanding these important differences.
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I am a Professional Educator, currently working for the Social Services of Olgiate Comasco (Como) through the 
