A Verbal is a part of speech whose members typically signal events and actions; constitute, singly or in a phrase, a minimal predicate in a clause; govern the number and types of other constituents which may occur in the clause; and, in inflectional languages, may be inflected for tense, aspect, voice, modality, or agreement with other constituents in person, number, or grammatical gender [Crystal 1997: 409; Givon 1984: 52; Payne 1997: 47].