Identity in ellipsis: An introduction Ellipsis is a phenomenon whereby certain parts of sentences are left unexpressed. The unexpressed material can correspond to various kinds of syntactic chunks. With respect to syntactic category and constituent size, they can be a noun/noun phrase, a predicate, or the entire clause to the exclusion of a single constituent (known as nominal ellipsis, predicate ellipsis and clausal ellipsis respectively). The following example demonstrates the well-studied verb phrase/ post-auxiliary ellipsis in English: (1) John might like this movie, and Bill might, too. There are various aspects to the theoretical interest that surrounds ellipsis. One aspect is concerned with the question of how the missing material is represented in the grammar. According to non-structural approaches, the ellipsis ''site'', i.e. the missing verb phrase following might in (1), has no internal structure or corresponds to an anaphoric element whose resolution is just like that of other anaphors (see for example