0 (used especially in the names of birds) having fur or feathers of two or more colours, usually black and white:
pied kingfishers
As the second of these examples shows, the negative element cannot be pied-piped to the front of the sentence along with the auxiliary verb.
However, a careful study of parasitic gaps in the clausal pied-piping constructions reveals that the gaps can only be licensed inside the infinitival clause.
The displacement of phrasal categories is carried out by some sort of general pied-piping operation.
It is clear that the 'stranding' option, since it involves moving, and thus copying, less material than the pied-piping option, creates less structural complexity.
Nor can the special status of (28b) be attributable to pied-piping since no piedpiping is at all involved in it.
If this presents a problem, the solution cannot lie in abandoning those natural constraints on pied-piping.
The basic treatment of pied piping is very simple.
Second, the reanalysis of stacked relatives via extraposition appears to interact incorrectly with pied piping.