This paper examines grammaticality and acceptability in the Ulrhobo language. Grammaticality has to do with well formedness of syntactic structures; grammaticality is usually considered as the structure of sentences and the order in which they are combined together to form sentences. A sentence can conform to the syntactic rule if it is constructed in a grammatical form. The study adopts the truth conditioning theory of meaning as a theoretical framework. The truth conditioning theory of meaning deals with the grammaticality and acceptability of sentence structures. The study reviews that the basic grammar of the Urhobo language conforms to the standard paradigm of a language structure such as Qualifier + Noun + verb + modifier + Adjective,...