declarative sentence

Sentence type whose primary purpose is to give information, as opposed to questions or imperatives. Declarative sentences can be assumed to have an underlying structure containing such verbs as say, assert, maintain: the sentence Prices are rising would be derived from I say to you that prices are rising. This sort of derivation is termed performative analysis. Basic word order in a language is generally determined from the word order of the unmarked declarative sentence. ( also imperative, interrogative, mood)

Reference

Ross, J.R. 1968. On declarative sentences. In R.A. Jacobs and P.S.Rosenbaum (eds), Readings in English transformational grammar, Waltham, MA, 1970. 222-72.