The meaning of any grammatical unit can be explored by its function in context. The communicative functionality of the grammar refers to the different uses of the language. Grammar constructs meaning through the creation of clauses at a rank scale and through the use of meta functions- ideational, interpersonal and textual. Grammar is not an optional add-on to communication (Lock, 1996:267). In order for people to communicate, they need to know the topic and the chronological location by selecting appropriate process types, tenses, participants, circumstances. They also need to relate the content interpersonally by choosing appropriate mood, modality, polarity and also they have to be able to select the appropriate thematic structure and reference in order to connect the situational context. Nevertheless, “the fact that a grammar or a linguistic theory can lead to insights about the use of language in social contexts does not mean, in itself, that it captures the whole truth about language” (Bloor&Bloor,
The meaning of any grammatical unit can be explored by its function in context. The communicative functionality of the grammar refers to the different uses of the language. Grammar constructs meaning through the creation of clauses at a rank scale and through the use of meta functions- ideational, interpersonal and textual. Grammar is not an optional add-on to communication (Lock, 1996:267). In order for people to communicate, they need to know the topic and the chronological location by selecting appropriate process types, tenses, participants, circumstances. They also need to relate the content interpersonally by choosing appropriate mood, modality, polarity and also they have to be able to select the appropriate thematic structure and reference in order to connect the situational context. Nevertheless, “the fact that a grammar or a linguistic theory can lead to insights about the use of language in social contexts does not mean, in itself, that it captures the whole truth about language” (Bloor&Bloor,