Although every language has certain rules in the formation of words and sentences, sometimes there are illegal uses for various reasons. For example, suffixes have specific functions in word formation. Noun and verb type suffixes are used to derive words in the Turkish language. Derivational suffix are the most basic unit of word derivation for the Turkish language. However, in some cases, inflectional suffixes are used to derive new meaningful words, just like derivational suffixes. The needs of the society using the language and the law of least effort in the language are effective here. Participle, adverbial verb and some indicative mood from the verb inflectional suffixes that constitute the subject of the study have been used in the formation of words in the historical course of the Turkish language. These suffixes inflexiblitingly with some verbs and form new meaningful words specific to that use only. Inflexible in verb ending suffixes have been frequently used in every period from Kök Turkish to contemporary Turkish dialects in the historical course of the Turkish language. In addition, it is a way of making words in case of need in Turkish dialects of Qarluq, Qypchaq and Oghuz groups today. In this study, suffix inflexiblities in verb inflectional suffixes and usage forms in sentences in Uzbek Turkish are discussed. In this study, firstly, information about inflexiblity was given, then the opinions of various researchers on this subject were given, and examples of inflexiblity were determined and shown by scanning the Uzbek dictionaries in which suffixes inflexiblity there were in Uzbek Turkish.

Uzbek Turkish, ending suffix, suffix inflexiblity, participle, gerundium.