2007
The Linguistic Cycle in the Early History of English, clauses in particular, GLAC 13, 14 April 2007.
Grammaticalization and Linguistic Cycles, University of Naples, 16 May 2007.
Subjects in the Linguistic Cycle: a Formal Account of Grammaticalization, talk at University of Padova , 18 May 2007.
Renewal in the left Periphery and the Linguistic Cycle, University of Venice, 21 May 2007 .
Negation in Athabaskan, Tsaile, 22 June 2007.
Origins of English Words, ASU, 18 July 2007.
Two steps in the Evolution of Language, Montreal, ICHL August 2007.
IHR cluster, introduction, 19 September 2007.
Negation, ALT, Paris, 27 September 2007.
Evolution and grammaticalization, Tucson, 5 October 2007.
2006
The Linguistic Cycle: Grammaticalization as Economy; Linguistisches Kolloquium, Munich, 11 January 2006.
Towards a unified framework in developmental linguistics, Tulsa, 14 April 2006.
The Linguistic Cycle DIGS, Trieste, June 2006.
Economy of Merge and Grammaticalization, Cradle of Language Conference, Stellenbosch, November 2006
The linguistic Cycle and the Clause, Berlin 7 December 2006.