Grammaticalization of Demonstratives as Subordinate Complementizers in Ngumpin-Yapa* An earlier version of this paper was presented at the Blackwood Australianist workshop and at the ALS conference in 2003, and thanks go to colleagues who provided comments at those meetings and later, especially Joyce Hudson, Mary Laughren, David Nash, Rachel Nordlinger, Rob Pensalfini, Eirlys Richards, Jane Simpson, Tasaku Tsunoda and David Wilkins. Thanks too to the Max-Planck Institute of Evolutionary Anthropology, Leipzig, where as a visiting scholar in 2003 I carried out revisions, and particularly to Holger Diessel, Zygmunt Frayzingier and Eva Schultze-Berndt for discussion there and to Christian Lehmann for comments.