Language is Systematic: Although language is symbolic, yet its symbols are arranged in a particular system. All languages have their system of arrangements. Every language is a system of systems. All languages have phonological and grammatical systems, and within a system there are several sub-systems. For example, within the grammatical system we have morphological and syntactic systems, and within these two sub-systems we have systems such as those of plural, of mood, of aspect, of tense, etc.