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Theta Criterion
The theta-criterion (also named θ-criterion) is a constraint on x-bar theory that was first proposed by as a rule within the system of principles of the government and binding theory, called theta-theory (θ-theory). As theta-theory is concerned with the distribution and assignment of theta-roles (a.k.a. thematic roles), the theta-criterion describes the specific match between arguments and theta-roles (θ-roles) in logical form (LF): Being a constraint on x-bar theory, the criterion aims to parse out ill-formed sentences. Thus, if the number or categories of arguments in a sentence does not meet the theta-role assigner's requirement in any given sentence, that sentence will be deemed ungrammatical. . In other words, theta-criterion sorts sentences into grammatical and ungrammatical bins based on c-selection and s-selection. Applied Theta grid A theta-role is a status of thematic relation . In other words, a theta-role describes the connection of meaning between a predi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-bar Theory
In linguistics, X-bar theory is a model of phrase-structure grammar and a theory of syntactic category formation that was first proposed by Noam Chomsky in 1970Chomsky, Noam (1970). Remarks on Nominalization. In: R. Jacobs and P. Rosenbaum (eds.) ''Reading in English Transformational Grammar'', 184–221. Waltham: Ginn. and further developed by Ray Jackendoff (1974, 1977a, 1977bJackendoff, Ray (1977b) Constraints on Phrase Structure Rules, in P. W. Culicover, T. Wasow & A. Akmajian (eds.), ''Formal Syntax'', Academic Press, New York, pp. 249–83.), along the lines of the theory of generative grammar put forth in the 1950s by Chomsky. It attempts to capture the structure of phrasal categories with a single uniform structure called the X-bar schema, basing itself on the assumption that any phrase in natural language is an XP (X phrase) that is headed by a given syntactic category X. It played a significant role in resolving issues that phrase structure rules had, representative of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raising (linguistics)
In linguistics, raising constructions involve the movement of an argument from an embedded or subordinate clause to a matrix or main clause; in other words, a raising predicate/verb appears with a syntactic argument that is not its semantic argument, but is rather the semantic argument of an embedded predicate. For example, in ''they seem to be trying'', the predicand of ''trying'' is the subject of ''seem''. Although English has raising constructions, not all languages do. The term ''raising'' has its origins in the transformational analysis of such constructions; the constituent in question is seen as being "raised" from its initial deep structure position, as the subject of the embedded predicate, to its surface structure position in the matrix predicate/verb. Raising predicates/verbs are related to control predicates, although there are important differences between the two predicate/verb types. Examples There are at least two types of raising predicates/verbs: raising-to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subject (grammar)
The subject in a simple English sentence such as ''John runs'', ''John is a teacher'', or ''John drives a car'', is the person or thing about whom the statement is made, in this case ''John''. Traditionally the subject is the word or phrase which controls the verb in the clause, that is to say with which the verb agrees (''John is'' but ''John and Mary are''). If there is no verb, as in ''John what an idiot!'', or if the verb has a different subject, as in ''John I can't stand him!'', then 'John' is not considered to be the grammatical subject, but can be described as the ''topic'' of the sentence. While these definitions apply to simple English sentences, defining the subject is more difficult in more complex sentences and in languages other than English. For example, in the sentence ''It is difficult to learn French'', the subject seems to be the word ''it'', and yet arguably the real subject (the thing that is difficult) is ''to learn French''. A sentence such as ''It was J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Control (linguistics)
In linguistics, control is a construction in which the understood subject of a given predicate is determined by some expression in context. Stereotypical instances of control involve verbs. A superordinate verb "controls" the arguments of a subordinate, nonfinite verb. Control was intensively studied in the government and binding framework in the 1980s, and much of the terminology from that era is still used today. In the days of Transformational Grammar, control phenomena were discussed in terms of ''Equi-NP deletion''. Control is often analyzed in terms of a null pronoun called ''PRO''. Control is also related to raising, although there are important differences between control and raising. Most if not all languages have control constructions and these constructions tend to occur frequently. Examples Standard instances of (obligatory) control are present in the following sentences: ::Susan promised to help us. - Subject control with the obligatory control predicate ''promise'' : ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nonfinite Verb
A nonfinite verb is a derivative form of a verb unlike finite verbs. Accordingly, nonfinite verb forms are inflected for neither number nor person, and they cannot perform action as the root of an independent clause. In English, nonfinite verbs include infinitives, participles and gerunds. Nonfinite verb forms in some other languages include converbs, gerundives and supines. Formally, nonfinite verb forms lack the three grammatical features ( mood, tense and voice) that are "associated, independently or relatively, with ... the act of predication." Generally, they also lack a subject dependent. One or more nonfinite verbs may be associated with a finite verb in a finite clause: the elements of a verb catena, or verb chain. Because English lacks most inflectional morphology, the finite and the nonfinite forms of a verb may appear the same in a given context. Examples The following sentences each contain one finite verb (underlined) and multiple nonfinite verbs (in bold): ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PRO (linguistics)
In generative linguistics, PRO (called "big PRO", distinct from ''pro'', "small pro" or " little pro") is a pronominal determiner phrase (DP) without phonological content. As such, it is part of the set of empty categories. The null pronoun PRO is postulated in the subject position of non-finite clauses. One property of PRO is that, when it occurs in a non-finite complement clause, it can be bound by the main clause subject ("subject control") or the main clause object ("object control"). The presence of PRO in non-finite clauses lacking overt subjects allows a principled solution for problems relating to binding theory. Within government and binding theory, the existence and distribution of PRO followed from the PRO theorem, which states that PRO may not be governed. More recent analyses have abandoned the PRO theorem. Instead, PRO is taken to be in complementary distribution with overt subjects because it is the only item that is able to carry ''null case'' which is checked for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underlying Structure
Deep structure and surface structure (also D-structure and S-structure although those abbreviated forms are sometimes used with distinct meanings) are concepts used in linguistics, specifically in the study of syntax in the Noam Chomsky, Chomskyan tradition of transformational generative grammar. The deep structure of a linguistic Sentence (linguistics), expression is a theoretical construct that seeks to unify several related structures. For example, the sentences "Pat loves Chris" and "Chris is loved by Pat" mean roughly the same thing and use similar words. Some linguists, Chomsky in particular, have tried to account for this similarity by positing that these two sentences are distinct ''surface forms'' that derive from a common (or very similar) deep structure. Origin Chomsky coined and popularized the terms "deep structure" and "surface structure" in the early 1960s. American linguist Sydney Lamb wrote in 1975 that Chomsky "probably [borrowed] the term from Hockett". American ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theta Role
In generative grammar, a theta role or θ-role is the formal device for representing syntactic argument structure—the number and type of noun phrases—required syntactically by a particular verb. For example, the verb ''put'' requires three arguments (i.e., it is trivalent). The formal mechanism for implementing a verb's argument structure is codified as theta roles. The verb ''put'' is said to "assign" three theta roles. This is coded in a theta grid associated with the lexical entry for the verb. The correspondence between the theta grid and the actual sentence is accomplished by means of a bijective filter on the grammar known as the theta criterion. Early conceptions of theta roles include (Fillmore called theta roles "cases") and . Theta roles are prominent in government and binding theory and the standard theory of transformational grammar. Thematic relations The term "theta role" is often used interchangeably with the term thematic relations (particularly in mai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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