From an MSNBC reporter this morning, with reference to a metaphorical hole:
… wait to see how dig he deeps it … how deep he digs it
The sort of inadvertent error that illustrates just how much advance planning goes on in speech production: constructions are blocked out, with inflectional trappings in place; prospective lexical items — of appropriate syntactic category and semantics, with at least some phonological properties — are entertained to fill the slots in these constructions. But, still, a lot can go wrong.
(Also note that the speaker caught the (glaring) error and corrected it himself. As is customary with big errors like this one.)
