Every language is a communicative System which allows its speakers to interact with each other. Linguists have been much more interested In the formal characteristics of the Systems than their various functions. in order to discuss how language functions in communication, a clear distinction must be made between Linguistic form and Linguistic Function. Linguistic form refers to the Phonological, Syntactic and Semantic properties of language. Linguistic function refers to the uses speakers make of linguistic form in Communication. Certain forms are clearly related to Certain functions. A form like: "Are you ready"? Usually functions as a question. A form like: "He arrived yesterday". Generally functions as a statement. But, in actual language use, Linguistic forms do not Correlate Exactly with Linguistic functions on every occasion. For example, dangerous dog" may function as warning as well as statement. Another "example "I can'. find glasses," may not be a statement, but a request for assist This means that we can use the Same linguistic form for different Purposes.