Moreover, passive and causative verbal forms can be derived by adding suffixes to the base, which could be seen as the null-th slot; however, passives are not as commonly used as in English and many verbs do not allow passivization at all.
12.
The way the TSC accounted for binding as well as movement phenomena ( such as the passivization examples above ), was influential for much subsequent research which tried to reduce binding and movement to the same set of principles ( see Kayne ( 2002 ) for a recent implementation ).
13.
In debuting the model, the authors claimed for it the following achievements : unification of ergative and nominative case alignments under a single framework; accounting for the movement of lexical case with an NP in passivization; and accounting for the appearance of post-verbal nominative case in Icelandic.