Published online by Cambridge University Press: 22 December 2008
It is widely believed that copulas perform a mere grammatical function, as carriers of grammatical categories such as Tense, Mood and Aspect in sentences with non-verbal predicates. Accordingly, zero copulas are predicted to occur only in contexts where these grammatical categories are unmarked. This article argues that this view of copulas, and especially of zero copula encoding, is untenable as a principle of Universal Grammar. More generally, the article demonstrates how typological generalizations can be used as an evaluation measure for putative abstract principles of linguistic theory.