<Ul> <Li> Government and binding theory (GB) </Li> <Li> Minimalist program (MP) </Li> </Ul> <Li> Government and binding theory (GB) </Li> <Li> Minimalist program (MP) </Li> <Li> Monostratal (or non-transformational) grammars <Ul> <Li> Relational grammar (RG) </Li> <Li> Lexical - functional grammar (LFG) </Li> <Li> Generalized phrase structure grammar (GPSG) </Li> <Li> Head - driven phrase structure grammar (HPSG) </Li> <Li> Categorial grammar </Li> <Li> Tree - adjoining grammar </Li> </Ul> </Li>

What are the main principles of generative-syntax discuss