<P> Transformational grammar (TG) or transformational - generative grammar (TGG) is, in the study of linguistics, part of the theory of generative grammar, especially of naturally evolved languages, that considers grammar to be a system of rules that generate exactly those combinations of words which form grammatical sentences in a given language . TG involves the use of defined operations called transformations to produce new sentences from existing ones . The concept was originated by Noam Chomsky, and much current research in transformational grammar has been inspired by Chomsky's Minimalist Program . </P> <Table> <Tr> <Th> Linguistics </Th> </Tr> <Tr> <Th> Theoretical </Th> </Tr> <Tr> <Td> <Ul> <Li> Cognitive </Li> <Li> Constraint - based </Li> <Li> Generative </Li> <Li> Structuralist </Li> <Li> Quantitative </Li> </Ul> <Ul> <Li> Functional theories of grammar </Li> </Ul> <Ul> <Li> Phonology </Li> <Li> Morphology </Li> <Li> Morphophonology </Li> <Li> Syntax </Li> <Li> Lexis </Li> <Li> Semantics </Li> <Li> Pragmatics </Li> <Li> Graphemics </Li> <Li> Orthography </Li> <Li> Semiotics </Li> </Ul> </Td> </Tr> <Tr> <Th> Descriptive </Th> </Tr> <Tr> <Td> <Ul> <Li> Anthropological </Li> <Li> Comparative </Li> <Li> Historical </Li> <Li> Etymology </Li> <Li> Graphetics </Li> <Li> Phonetics </Li> <Li> Sociolinguistics </Li> <Li> Cherology </Li> </Ul> </Td> </Tr> <Tr> <Th> Applied and experimental </Th> </Tr> <Tr> <Td> <Ul> <Li> Computational </Li> <Li> Contrastive </Li> <Li> Evolutionary </Li> <Li> Forensic </Li> <Li> Internet </Li> </Ul> <Ul> <Li> Language acquisition </Li> <Li> Second - language acquisition </Li> <Li> Language assessment </Li> <Li> Language development </Li> <Li> Language education </Li> <Li> Linguistic anthropology </Li> </Ul> <Ul> <Li> Neurolinguistics </Li> <Li> Psycholinguistics </Li> </Ul> </Td> </Tr> <Tr> <Th> Related articles </Th> </Tr> <Tr> <Td> <Ul> <Li> History of linguistics </Li> <Li> Linguistic prescription </Li> <Li> List of linguists </Li> <Li> Unsolved linguistics problems </Li> <Li> Origin of language </Li> <Li> Origin of speech </Li> </Ul> </Td> </Tr> <Tr> <Td> Linguistics portal </Td> </Tr> <Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> </Table>

Transformational grammar is best associated with rules of
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