INTRODUCTION
To study of language,
there are many structures to make a good grammar. Grammar is a policy to
produce a good sentence. Before become a sentence, the word has a term obey the
form. Such as, phrase, clause and then sentence. In this occasion, clause has
some function in grammatical structure. There are clause as exchange, clause as
message, clause as Significance of clause as exchange It is about the
relationship speakers forge with listeners through the form of language.