The status of functional categories in child second language acquisition: evidence from the acquisition of CP

This study examines the status of the functional categories in child second language (L2) acquisition of English. Results from longitudinally collected data are reported, presenting counterevidence for recent hypotheses on early L2 acquisition that assume (1) a structure-building approach according to which the acquisition of functional categories follows an implicational sequence of development of VP-IP-CP (Vainikka and Young-Scholten, 1994; 1996a; 1996b; 1998); and (2) a direct relationship between the acquisition of inflectional morphology and the development of functional categories (Eubank, 1993/94; 1996; Vainikka and Young-Scholten, 1994; 1996a; 1996b; 1998). The child L2 data analysed in this article show that the development of CP is not implicationally contingent on the prior acquisition of IP. The data also suggest that the lack of morphological forms in interlanguage grammars reflects a problem with the realization of surface morphology, rather than an impairment in the domain of functional projections.

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