Abstract
The system of adverbials with temporal meaning is analyzed here with specific emphasis on their surface expressions. The traditional classification for the meanings applied as responses for the question When?, Since when?, Till when?, How long?, How often? requires a more precise subcategorization with regard to systemic behavior of the adverbials.
For the primary temporal expressions answering the questions When? and How long?, a system of subfunctors is proposed, while for the secondary meanings Since when?, Till when?, the corresponding functors are not splitted into subfunctors. The meanings connected with the repetition and the frequency are not discussed here as they belong to the description of the boundary between lexicon and grammar.