Chapter 7 - Complementiser Phrases(126) a CP
C'
C iP
e AP i'
never i IP
e DP I'
we I VP
have played so well
b CP
C'
C iP
e DP i'
Bert i IP
Foc DP I'
she I VP
is marrying
With these structures in place we now have room for all fronted elements in
English including wh-elements, topics, foci and fronted negatives and the inverted
auxiliaries that accompany them. We have not accounted for why there is
complementary distribution between elements that move to spec iP and wh-elements.
This may be a semantic incompatibility rather than a matter of syntactic distribution,
as suggested by the fact that this seems more of a universal restriction rather than
something restricted to English. Alternatively, it may have something to do with the
locality of movement in that if iP is present a wh-element is prevented from moving to
spec CP. I will not attempt to sort these issues out here.