This paper presents an argument based on evidence from experiments featuring Antecedent-Contained Deletion (ACD) sentences situated in carefully-manipulated discourse contexts, that covert movement is not grammatically constrained by tense. ACD is a form of Verb Phrase Ellipsis in which ellipsis is embedded in its antecedent. Under an account appealing to Quantifier Raising, the quantificational phrase containing the ellipsis site raises to a VP-external position, allowing the VP to become the antecedent. When ACD is embedded in a non-finite clause, such sentences are ambiguous, since multiple VPs can serve as an antecedent. However, when ACD is embedded in a finite clause, the range of interpretations has been claimed to be restricted, because of an independent 'clause-bounded' movement constraint on Quantifier Raising. However, there are exceptions to this generalization. I present evidence from an experimental investigation of finite-clause-embedded ACD sentences, relying on Cecchetto (2004), to demonstrate that under the right discourse conditions, the supposedly unavailable Matrix reading surfaces robustly, at a percentage that is surprising if the constraint were rooted in the grammar. I argue that these results call into question the source of this locality restriction, and propose that it has nothing to do with an arbitrary grammatical constraint on movement.
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