One of the most promising new developments of recent research into theoretical syntax within the model of Government and Binding (GB) as presented in Chomsky (1981) and (1982) has been the new importance given to the study of languages other than English. This has stimulated a great deal of work into a variety of languages (see, for example, Rizzi, 1982; Borer, 1983; Bouchard, 1984; Huang, 1984 and others). It has also been welcomed by linguists outside the TG tradition. Thus, Comrie, (1984:155) expresses his delight that ‘Chomsky (1981) makes clear that generative grammarians have come to realize that an adequate study of syntax within universal grammar requires the study of languages of different types. Chomsky's main concern has always been to formulate a theory that would achieve ‘explanatory adequacy’ by providing a restrictive set of principles which could characterize universally the notion ‘natural language’. However, detailed and in-depth analyses of various languages have revealed that in order to achieve ‘descriptive adequacy’ the theory has to allow for cross-linguistic differences, or ‘parametric variation’. The concept of parametric variation weakens some-what the restrictiveness of the universal grammar (UG) hypothesis and even more so its purported innateness, since the values for the parameters must be arrived at by the child through induction from empirical evidence. Nevertheless, explanatory adequacy may still be attained if the number of parameters is very small and each parameter has few values.
