I'm looking at this example of Extraposition from Wikipedia:
Then under Theoretical Accounts (of discontinuity in general) it is written that "[m]odern theories of transformational grammar ... assume a movement or copying procedure".
It is my understanding that:
- The subject is never dominated by the VP node.
- Nodes can move up the tree but not down.
If this is correct, how can movement account for this kind of extraposition? As I see it, either the subject something to take seriously has to start under the VP node and its head has to move up (is it even possible that only the head moves?), or the CP to take seriously of the subject has to move down the tree. Either way one of these constraints is violated.
So how do "modern theories" account for this kind of extraposition?