must

English Grammar 10: Modal verbs - obligation

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Series English Grammar - Modal verbs: obligation (Must/have to)
 
In this lesson we will start talking about English modal verbs of obligation, so we will take a look at the difference between MUST and HAVE TO. In addition Antonia will explain the difference between modal verbs and equivalents of modal verbs, which is very important to understand, as many grammatical mistakes are made since students do not understand this difference. So let's get cracking!

English Grammar 4: Modal Verbs 1

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This video lesson is devoted to the following modal verbs: must, may, might, could, can't.
In this case we will talk about assumptions with different degrees of uncertainty. More over I'll pay special attention to grammatic constructions and forms you can use here.
 
Of course there will be other videos, devoted to this issue, as modal verbs have a lot to offer!