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modal verbs :check: - Coggle Diagram
modal verbs :check:
HAVE TO
We can also use “have to” to talk about rules and regulations. The authority for the obligation doesn’t come from the person who is speaking. Perhaps the rule is a general law or obligation.
remember“Have to” is a normal verb. Use “do” or “does” to make a question, and “don’t” or “doesn’t” to make a negative. : :!!:
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MUST
We use “must” to talk about obligations. Often, when we use “must”, the authority for the obligation comes from the person who is speaking. and we use must to say "this is important or necessary" .
Remember that “must” is a modal auxiliary verb. This means that it doesn’t change its ending (I must, he must, etc) and that it’s followed by the infinitive without ‘to’. (“You must phone me” not “You must to phone me”.) :!!:
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MUST NOT
is a negative obligation, meaning that something is not allowed.
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REMEMBER :<3: :red_flag:
In negative statements and questions, ‘must’ and ‘have to’ have special meaning and are used differently
Remember that modal verbs are always followed by a base form of a verb – an infinitive verb without to.
Ought to: we use ought to, to tell someone that something is a good idea. But REMEMBER: ought to it´s used mostly in writing, and the negative form is rare
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