a syntactic category that forms a sentence; it relates the content of a sentence to reality and thereby makes it a unit of communication, or utterance.
Predicativity is a combination of two syntactic categories— grammatical tense and mood. It sometimes includes the category of person, although it expresses actual syntactic relations between words and belongs to a different level of sentence organization. Predicativity is borne by the predicate in two-member sentences and by the principal member in one-member sentences. It is distinguished from what is called subjective modality, on the basis of which are formed the evaluative meanings that infer the speaker’s relation toward that which is communicated. Negation, or denial, and the speaker’s purpose in transmitting or seeking information—narrativity or interrogativity—are not relevant to predicativity.