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2. English grammar - Wikipedia

   en.wikipedia.org/wiki/English_grammar

   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 ...

3. Chomsky hierarchy - Wikipedia

   en.wikipedia.org/wiki/Chomsky_hierarchy

   The Chomsky hierarchy in the fields of formal language theory, computer science, and linguistics, is a containment hierarchy of classes of formal grammars. A formal grammar describes how to form strings from a language's vocabulary (or alphabet) that are valid according to the language's syntax. The linguist Noam Chomsky theorized that four ...

4. Formal grammar - Wikipedia

   en.wikipedia.org/wiki/Formal_grammar

   For example, a grammar for a context-free language is left-recursive if there exists a non-terminal symbol A that can be put through the production rules to produce a string with A as the leftmost symbol. [14] An example of recursive grammar is a clause within a sentence separated by two commas. [15] All types of grammars in the Chomsky ...

5. Grammar - Wikipedia

   en.wikipedia.org/wiki/Grammar

   In linguistics, a grammar is the set of rules for how a natural language is structured, as demonstrated by its speakers or writers. Grammar rules may concern the use of clauses, phrases, and words. The term may also refer to the study of such rules, a subject that includes phonology, morphology, and syntax, together with phonetics, semantics ...

6. Syntactic Structures - Wikipedia

   en.wikipedia.org/wiki/Syntactic_Structures

   The grammar model discussed in Noam Chomsky's Syntactic Structures (1957) Chomsky's transformational grammar has three parts: phrase structure rules, transformational rules and morphophonemic rules. [68] The phrase structure rules are used for expanding grammatical categories and for substitutions. These yield a string of morphemes. A ...

7. Phrase structure rules - Wikipedia

   en.wikipedia.org/wiki/Phrase_structure_rules

   A grammar that uses phrase structure rules is a type of phrase structure grammar. Phrase structure rules as they are commonly employed operate according to the constituency relation, and a grammar that employs phrase structure rules is therefore a constituency grammar; as such, it stands in contrast to dependency grammars, which are based on ...