Abstrakt
The paper deals with the expressions of evidence and their role in sentence/utterance pragmatic modification. It concentrates on the role of the so-called sentence adverbials, showing them as scoping / focussing elements the main function of which is a/ to mark focus of an utterance b/ to support speaker´s reasoning.
Formal properties of evidential expressions are dissimlar to that point that they cannot be comprised into a unified category.