necessity

being required

going | have | need | want + TO BE + past participle

Here’s an example of an infinitive passive structure. He said it was the summation of the parts working together in such a way that nothing needed to be added, taken away, or altered. listen The English Grammar Profile B1 point 4 in the category of passives is defined as: an infinitive after a limited number of forms including ‘going to’, ‘have to’, ‘need to’, ‘want to’. *Note that Pearson lists this as: GSE 59 B2 …

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MUST questions

In the English Grammar Profile, there are two points in the category of Modality at B2 which are practically the same. Point 147 is: ‘must’ the question form. Point 161 is: ‘must’ to ask about obligation and necessity. For example: I began to wonder, why must it be so binary? TED What sort of talents must we be sure to defend? TED An iWeb cluster search for must …

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