Syntax is the system of a language that tells us how to put words together to produce phrases, clauses, and sentences. It is shortly said as the grammatical structure of sentences. Central concerns of syntax include word ordergrammatical relations, hierarchical sentence structure, the nature of crosslinguistic variation, and the relationship between form and meaning. Syntacticians have attempted to explain the causes of word-order variation within individual languages and cross-linguistically. Much of such work has been done within frameworks of generative grammar which assumes that the core of syntax depends on a genetic structure which is common to all mankind.