V(P)-fronting in Asante Twi and Limbum

When a verb or verb phrase is fronted from a clause lacking any other verbs either a copy of the displaced verb occurs or a dummy verb ‘do’ is inserted. Most languages employ the same strategy for both verb and verb phrase fronting. Here, I present two African languages, Asante Twi and Limbum, where displacement of a single verb results in a verb copy while a full verb phrase triggers do-support when fronted. Both V and VP-fronting show the same syntactic properties within each language. A reverse pattern of verb doubling with VP-fronting but do-support with V-fronting is unattested. I propose an analysis of both strategies in terms of different orders of application between post-syntactic head movement and copy deletion. In interaction with the type of V-movement, remnant VP or head-to-spec movement, this derives all three attested patterns to the exclusion of the unattested one.