Adnominal adjectives, code-switching and lexicalized TAG

In codeswitching contexts, the language of a syntactic head determines the distribution of its complements. Mahootian 1993 derives this generalization by representing heads as the anchors of elementary trees in a lexicalized TAG. However, not all codeswitching sequences are amenable to a head-complement analysis. For instance, adnominal adjectives can occupy positions not available to them in their own language, and the TAG derivation of such sequences must use unanchored auxiliary trees.