The article is devoted to comparative study of lexemes with negative elements by means of componential and syntaxeme analyses based on junctional and componential models. In the process of the investigation isomorphism and allomorphism of revealed syntaxemes with negative elements have been determined in the structure of sentences in the English and Uzbek languages.

negativity, componential model, junctional model, nuclear predicated, un-nuclear dependent, negative affixes, prefixes, suffixes, coordinative components.