English Auxiliaries And Contractions
In English grammar, certain verb forms are classified as auxiliary verbs. Exact definitions of this term vary; an auxiliary verb is generally conceived as one with little semantic meaning of its own, which modifies the meaning of another verb with which it co-occurs. In English, verbs are often classed as auxiliaries on the basis of certain grammatical properties, particularly as regards their syntax – primarily whether they participate in subject–auxiliary inversion, and can be negated by the simple addition of not after them.
Certain auxiliaries have contracted forms, such as 'd and 'll for had/would and will. There are also many contractions formed from the negations of auxiliary verbs, ending in n't (a reduced form of not). These latter contractions can participate in inversion as a unit (as in Why haven't you done it?, where the uncontracted form would be Why have you not done it?), and thus in a certain sense can be regarded as auxiliary verbs in their own right.
For details about the verbs classed as modal auxiliaries, see English modal verbs.
Other articles related to "english auxiliaries and contractions, contractions, contraction":
... In cases of subject–auxiliary inversion, particularly in the formation of questions, the negative contractions can remain together as a unit and invert with the subject, thus ... question formation isn't inverts with he) The alternative is not to use the contraction, in which case only the verb inverts with the subject, while the not remains in place after ... Note that the form with isn't he is no longer a simple contraction of the fuller form (which must be is he not, and not *is not he) ...
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