Substantially agreeing with Hornstein (2009: 81), “it is fair to say that what adjuncts are and how they function grammatically is not well understood”. I refer the reader to, e.g., Hornstein 2009: chapter 4, Hornstein & Nunes 2008, Hunter 2010 or most recently Hunter 2015 for a catalog of properties and problems adjuncts raise in general, and in particular for all previous proposals including ...