415 case chomsky clauses comparative comparativeandgeneral comparativeandgeneralgrammar english englishlanguage generative generativegrammar government-bindingtheory(linguistics) grammar head-drivenphrasestructuregrammar historicallinguistics japanese japaneselanguage languageacquisition linguisticuniversals minimalisttheory(linguistics) noam secondlanguageacquisition sentences slaviclanguages syntax