Relacionar Columnas Modal verbs of obligation Versión en línea Match the modal verb of obligation with the correct description of each one. por AE Nallely 1 Have to 2 Negative structure 3 Shouldn't 4 Don't have to 5 Positive structure 6 Must 7 Mustn't 8 Should Modal verb in negative form (shouldn't / mustn't / don't have to) + infinitive form of the action verb Means you DON'T need to do something, but it's FINE if you want to do it. Modal verb + infinitive form of the action verb Expresses that something is ESSENTIAL or MANDATORY from the SPEAKER'S point of view. It is an internal, subjective and strong OBLIGATION that the speaker HIMSELF imposes. Expresses a STRONG obligation that comes from a LAW or REGULATION. Is a weak obligation, and we use it to give advice. Means it's not ALLOWED. Express PROHIBITION. Means something is FORBIDDEN. Talks about rules and regulations. The obligation does not come from the person who is speaking. MILD negative obligation or advice. Expresses that something is a BAD idea.
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