Native speakers of English regularly hear sentences without overt subjects. Nevertheless, they maintain a [[superscript -]pro] grammar that requires sentences to have an overt subject. It is proposed that listeners of English recognize that speakers reduce predictable material and thus attribute null subjects to this process, rather than changing…

Traditional syntactic accounts of verb phrase ellipsis (e.g., ''Jason laughed. Sam did [ ] too.'') categorize as ungrammatical many sentences that language users find acceptable (they ''undergenerate''); semantic accounts overgenerate. We propose that a processing theory, together with a syntactic account, does a better job of describing and…

The model of sentence perception proposed by Fodor, Bever and Garrett (1974) emphasizes the importance of grammatical cues signalling clause boundaries, and suggests that segmentation of a sentence into clauses precedes computation of the internal structure of those clauses. However, this model has nothing to say about the many sentences in which…