This paper provides an intransitive analysis for an array of predicates which exhibit specific marking patterns in
Budai Rukai. Contra previous lexical approaches, it is argued that a verbal prefix found on the predicates instantiates a
functional head v, which constructs an intransitive vP. Its spell-out form is conditioned by its
interaction with other higher functional categories, including tense, causative, passive, and complementizer. With respect to
intransitivity, the resulting vP does not admit an accusative object, and it exhibits unergative, unaccusative,
and anticausative properties. Regarding argument structure, these predicates are mostly one-place predicates. The sole argument is
the grammatical subject which usually denotes an affected theme or an experiencer.