Abstract: Language is a static and dynamic symbol system, a symbol system that combines sound and meaning with non-systematic features and self-regulating functions. However, the statics of the language occur after the dynamics, which makes the language distinctly unsystematic. Usually human communication activities will lead to various deviations and variations of language activities from language norms, thus impacting and destroying the language system, so language has the function of self-regulation. A certain degree of irregularity is therefore a prerequisite for the further development of the language.
The use of language needs to conform to grammatical rules, and at the same time pursue aesthetic characteristics such as vividness, vividness and imagery. In order to meet these needs, there is a phenomenon of breaking the rules and flexible collocation in a specific language environment. As far as sentence components are concerned, this kind of unconventional collocation is manifested in several aspects: 1. the supernormal collocation of verb and object; 2. the supernormal collocation of modifier and head; Special attention should be paid to the fact that the unconventional collocation of words should be within a reasonable range, and if there is no reasonable part, it cannot enhance the expression effect, and it should also be regarded as an improper collocation in grammar.