How languages differ and why. When languages interact, they become similar in certain ways. This project will explore the reasons for this, by examining why there are many languages of diverse structures in certain regions, focussing on New Guinea, Amazonia and north-east Queensland. The project will assist with understanding how language helps and hinders inter-ethnic communication.
The grammar of knowledge: a cross-linguistic view of evidentials and epistemological expressions. How does a speaker know that what they say is correct? Some languages have obligatory marking for stating 'information source' ('seen', 'inferred', or 'reported'). In others a source is optional - 'the (reported) theft'. This cross-linguistic investigation will advance our understanding of human interaction and the expression of knowledge.