The author analyses the structure of the predicative expression, i.e. a mor-phosyntactic construction functioning as the so-called constitutive predicate of the proposition in question. She illustrates her analysis with examples from Polish and from Macedonian – two languages whose grammatical systems are maximally typologicaly opposed in the frame of the Slavic linguistic group. She states that the predicative expression is composed of 1) constitutive form of verbum finitum and 2) its adjuncts formalized as adverbia and/or adverbialia responding to the questions: when? how long? how? in which mood? in which way? and carrying supplementary information from the semantic domains of the grammatical categories characteristic of the finite verb, such as ‘time’, ‘aspect’, or ‘mood’; most numerous are those informing (a) on the location of the referred to event on the time-axis or (b) on the procedure leading to the realization of that event.