It is shown that internal argument sharing is a necessary property of serial verb constructions in Ewe. Data involving the marking of oblique/default Case in Ewe show that argument sharing is mediated by the presence of empty categories, contra proposals by Baker (1989, 1991). Serial verb constructions are analyzed as control structures where the second verb incorporates into the first verb at LF.
Collins, Chris. 1997. Argument Sharing in Serial Verb Constructions. Linguistic Inquiry 28.3, 461-497.