This chapter argues that even if typological considerations make it very likely thatthe category of support-verb constructions did in fact exist in Proto-Indo-Europeanand the support-verb use of roots such as *dheh1 ‘to put’ or *deh3 ‘to give’ may beassumed for the parent language with a sufficient degree of certainty, the reconstruction of specific support-verb constructions will probably never be entirely successful. Apart from the almost complete lack of comparable constructions built ofcognate elements in the individual daughter languages it also runs counter to various theoretical and methodological principles of comparative historical linguistics.