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This paper argues that a set of codeswitching data has implications for the nature of cognitive control in bilingualism and for models of language production in general. The data discussed are Embedded Language (EL) nonfinite verbs that occur in Matrix Language (ML) frames with appropriate ML inflectional morphology in some codeswitching (CS) corpora. Notably EL infinitives are involved, as in wo mu conçevoir be nu?e . . . "they don't imagine that something . . ." (from Ewe-French CS). The main argument is that such nonfinite forms are selected because they only need checking at the lexical-conceptual level of abstract structure with the speaker's intended semantic-pragmatic meaning. That is, they do not project information about syntactic and argument structure that is included in the abstract structure of finite verbs. Nonfinite EL verbs occur because they better satisfy the speaker's intentions regarding semantic and pragmatic meaning than NL finite verbs. The employment of nonfinite EL verbs instead of EL finite verbs partially explains why codeswitching in general and such verb phrases in particular is perceived as fast and effortless. How one lexical entry (the EL nonfinite verb) can take on the morphosyntactic role of another one (the ML finite verb) implies flexibility in cognitive control at an abstract level. It also implies a certain malleability at an abstract level in the ML morphosyntactic frame that makes it possible to take in a nonfinite verb in a slot for a finite verb.
