now playing Learning English Grammar Modals of deduction and speculation 6 mins Learning English Grammar The past perfect Where had John already gone when Mary rang his doorbell? We give you the ...
A HALLMARK for correctness in English grammar is subject-verb agreement, which demands that in a sentence, the subject and verb must always agree in number. If the subject is singular, its verb must ...
This is a preview. Log in through your library . Abstract Many of the formalisms used in Attribute Value grammar are notational variants of languages of propositional modal logic, and testing whether ...
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