User:Allisonemp/sandbox

Passives
There are two properties of passivization in that the thematic Agent role is suppressed and that the verb does not have the ability to assign case. In the first property, the NP subject will not be thematic related to the verb and if the subject were to stay at its current position without a thematic relation it would violate the Theta Criterion. In order for nouns to be marked by case they must undergo head movement in which the noun in moved into a part of a tree structure that allows the subject to receive nominative case. The two fundamental properties of passivization and is being shown together in Burzio's Generalization of “A verb which fails to theta-mark its subject also fails to assign accusative case to its complement-NP; and, conversely, a verb that assigns accusative case to its complement-NP also theta-marks an external argument."