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In linguistics, grammar is the set of structural rules governing the composition of clauses, phrases, and words in any given natural language. The term refers also to the study of such rules, and this field includes morphology, syntax, and phonology, often complemented by phonetics, semantics, and pragmatics. ==Use of the term== The term ''grammar'' is often used by non-linguists with a very broad meaning. As Jeremy Butterfield puts it, "Grammar is often a generic way of referring to any aspect of English that people object to."〔Jeremy Butterfield, (2008) ''Damp Squid: The English Language Laid Bare'', Oxford University Press, Oxford. 978-0-19-923906. p. 142.〕 However, linguists use it in a much more specific sense. Speakers of a language have a set of internalised rules〔Traditionally, the mental information used to produce and process linguistic utterances is referred to as "rules". However, other frameworks employ different terminology, with theoretical implications. Optimality theory, for example, talks in terms of "constraints", while construction grammar, cognitive grammar, and other "usage-based" theories make reference to patterns, constructions, and "schemata"〕 for using that language. This is grammar, and the vast majority of the information in it is acquired—at least in the case of one's native language—not by conscious study or instruction, but by observing other speakers; much of this work is done during early childhood. Learning a language later in life usually involves a greater degree of explicit instruction. The term "grammar" can also be used to describe the rules that govern the linguistic behaviour of a group of speakers. The term "English grammar", therefore, may have several meanings. It may refer to the whole of English grammar, that is, to the grammars of all the speakers of the language, in which case, the term encompasses a great deal of variation.〔 ; for more discussion of sets of grammars as populations, see: 〕 Alternatively, it may refer only to what is common to the grammars of all, or of the vast majority of English speakers (such as subject–verb–object word order in simple declarative sentences). Or it may refer to the rules of a particular, relatively well-defined variety of English (such as standard English for a particular region). A specific description, study or analysis of such rules may also be referred to as a grammar. A reference book describing the grammar of a language is called a "reference grammar" or simply "a grammar". A fully explicit grammar that exhaustively describes the grammatical constructions of a language is called a descriptive grammar. This kind of linguistic description contrasts with linguistic prescription, an attempt to discourage or suppress some grammatical constructions, while promoting others. For example, preposition stranding occurs widely in Germanic languages and has a long history in English. John Dryden, however, objected to it (without explanation),〔Rodney Huddleston and Geoffrey K. Pullum, 2002, The Cambridge Grammar of the English Language. Cambridge (UK): Cambridge University Press, p. 627f.〕 leading other English speakers to avoid the construction and discourage its use. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Grammar」の詳細全文を読む スポンサード リンク
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