sentences:  In these cases, contraction of the wh-word and auxiliary verb is easily possible despite the putative presence of the trace.What these examples suggest is that "wanna" is not transformationally derived through contraction, but rather it is a lexical item in its own right that subcategorizes for a bare infinitive.It is, then, similar to other apparent contractions such as "aren't" and "isn't", which upon scrutiny cannot be transformationally derived, but rather must also lexical items in their own right.