Chapter 20. Constructional change and motion charts
This chapter introduces motion charts as a method for dynamic visualization of language change. More specifically, they enable one to detect and explore changes in the use of constructions by visualizing the relative frequencies of different lexemes that fill in the constructional slots. The method is illustrated with a case study that explores the changes in the use of future markers <i>will</i> and <i>be going to </i>by comparing the frequencies of infinitives that follow the markers.