This study first identified the features of Chinese idioms that can only appear in adverbial position and Chinese idioms that can only appear in complement position, and the features of idioms that can appear in both adverbial position and complement position.
Based on this, I discussed the formation of typical adverbial idiom constructions and typical complement idiom constructions, also covered the expansion to atypical constructions.
Adverbial idiom constructions and complement idiom constructions basically form typical constructions by adopting idioms that match the semantic features of the constructions. Also, the constructions do not stop at forming the typical constructions, but expands to the atypical constructions. In other words, the constructions are expanded by adopting idioms whose lexical features are inconsistent with the features of the constructions, or extending the constructions in a way that do not inherit the prototypical features of the constructions. It can be seen that some idioms can appear in both adverbial and complement positions due to the expansion of constructions.