The fundamental insight is grammation, a change from lexical to grammatical content via reanalysis of a lexical item to be merged in a functional projection. Feature change and preference principles provide the necessary motivation. Reduction processes are separate from grammation. In non‐mora‐timed languages they often accompany grammation because of the increased frequency of the construction which prompts acceleration and facilitates reduction processes. The alleged universal cline is irrelevant because many languages exhibit changes from free or clitic (adjoined to words or phrases rather than to roots or stems) to bound or from bound (affix) to clitic or free. Series of changes occur but are motivated by feature changes. Grammation changes discussed in formal terms in this chapter include English gonna, the Romance future, and English like.
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