EN
The author finds out that in all chapters of Ružička ́s study The Syntax of Infinitive in Slovak Standard Language (1956), there are many phrasemes being used as explanation models and examples. The research follows the interpretation of syntactic validity of these units considering the fact that J. Ružička did not accept the thesis of accruing phraseological theory about decay of syntactic relations in a process of the phraseologization, and analyses idiomatic expressions like free collocations. In conclusion, the author affirms he finds Ružička ́s approach foresighted and theoretically well-researched in so far as the later interpretation in phraseology would become rather syntactic as well.