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Linguistic prescription[ a] is the establishment of rules defining preferred usage of language. [ 1][ 2] These rules may address such linguistic aspects as spelling, pronunciation, vocabulary, morphology, syntax, and semantics. Sometimes informed by linguistic purism, [ 3] such normative practices often propagate the belief that some usages are ...
Shall and will. Shall. and. will. Shall and will are two of the English modal verbs. They have various uses, including the expression of propositions about the future, in what is usually referred to as the future tense of English. Historically, prescriptive grammar stated that, when expressing pure futurity (without any additional meaning such ...
English grammar is the set of structural rules of the English language.This includes the structure of words, phrases, clauses, sentences, and whole texts.. This article describes a generalized, present-day Standard English – a form of speech and writing used in public discourse, including broadcasting, education, entertainment, government, and news, over a range of registers, from formal to ...
In the Appendix, after a list of nine "useful spelling guidelines", there is a note: The i before e except after c rule is not worth teaching. It applies only to words in which the ie or ei stands for a clear / ee / sound and unless this is known, words such as sufficient, veil and their look like exceptions.
Conditional sentence. Conditional sentences are natural language sentences that express that one thing is contingent on something else, e.g. "If it rains, the picnic will be cancelled." They are so called because the impact of the main clause of the sentence is conditional on the dependent clause. A full conditional thus contains two clauses: a ...
Chomsky normal form. Not to be confused with conjunctive normal form. In formal language theory, a context-free grammar, G, is said to be in Chomsky normal form (first described by Noam Chomsky) [ 1] if all of its production rules are of the form: [ 2][ 3] where A, B, and C are nonterminal symbols, the letter a is a terminal symbol (a symbol ...
In both British and American grammar, would and should have different meanings. However, in British grammar, it is also possible for should and would to have the same meaning, with a distinction only in terms of formality ( should simply being more formal than would ).
The set of all context-free languages is identical to the set of languages accepted by pushdown automata, which makes these languages amenable to parsing.Further, for a given CFG, there is a direct way to produce a pushdown automaton for the grammar (and thereby the corresponding language), though going the other way (producing a grammar given an automaton) is not as direct.