Sub-extraction from phase edges

The Complementiser Phase: subjects and wh-dependencies

This chapter investigates Chomsky’s (2008) phase-based analysis of CED effects, which capitalizes on an opacity created by phasal specifiers (socalled ‘edges’). After reviewing different pieces of evidence, it is argued that an Agree/Activity Condition approach to islandhood phenomena is theoretically and empirically superior, a conclusion that is pushed to A-over- A situations where sub-extraction takes place from dependents displaced to the CP edge.