In his contribution, the author focuses not only on the place of idioms in Czech phraseology and idiomatics, but above all in the speech practice of native and non-native speakers of the Czech language. Based on the results of the pre-research of the planned research, it lists the most frequently used idioms in current language practice and concludes that the younger generation of speakers use idioms less than the older generation.
Non-native speakers tend to avoid pronominals in their language practice.