Published online by Cambridge University Press: 10 October 2008
This article discusses a number of problematic issues relating to the methodology involved in investigating a rare syntactic form. Three key areas are explored, namely fieldwork technique, sampling methodology and data analysis. Although the starting-point is a particular survey of a rare French tense, the questions raised are of more general relevance. In the light of previous research, both theoretical and practical sides of the issues are discussed and debated.