transformational grammar वाक्य

The distinction between lexical and functional categories plays a big role in Chomskyan grammars ( Transformational Grammar, Government and Binding Theory, Minimalist Program ), where the role of the functional categories is large.
:: ( Note this exact same question was also asked on Talk : Transformational grammar, where I answered it to some degree; here I'm answering Diderot more than the OP ).
Using the insights of transformational grammar, Kuno sketches out what standard grammars do not tell their readers, i . e ., when otherwise normal grammatical patterns " can not " be used.
Beginning with his " Syntactic Structures " ( 1957 ), a distillation of his " Logical Structure of Linguistic Theory " ( 1955 ), Chomsky challenges structural linguistics and introduces transformational grammar.
From the 1950s, American linguistic tradition began to diverge from the nativist " transformational grammar and successor theories, which during the 1970s " linguistics wars " gave rise to a wide variety of competing grammar frameworks.

Particularly in early incarnations, transformational syntax adopted the view that phrase structure grammar must be enriched by a transformational grammar, with syntactic rules or syntactic operations that alter the base structures created by phrase structure rules.
In transformational grammar, systems of phrase structure rules are supplemented by transformation rules, which act on an existing syntactic structure to produce a new one ( performing such operations as negation, passivization, etc . ).
In addition to Chomsky's theory of Transformational grammar, other contemporary developments of structuralism included Kenneth Pike's theory of tagmemics, Sidney Lamb's theory of stratificational grammar, and Michael Silverstein's work.
In recent transformational grammar, the term " specifier " is not normally used to refer to a type of word or phrase, but rather to a structural position provided by X-bar theory or some derivative thereof.
ECP is a principle of transformational grammar by which traces must be visible, i . e . they must be identifiable as empty positions in the surface structure, similar to the principle of reconstruction for subcategorized for by a verb.