EN
The paper describes the process of modalization of originally verbal expressions such as přijde (in the dialect přende, přydže...), (se) patří...; it explains the causes of this process and its manifestation (consequences) on the morphological and syntactic levels: ta stodola / to stodolo přende / (se) patři jož zbórat... The topic was initiated during work on the Dictionary of Czech Dialects (A-C; available from sncj.ujc.cas.cz) but also by numerous articles on modal expressions (modal verbs and modal predicatives) by Josef Zubatý, co-founder and previous editor of the journal Naše řeč (Our Speech). The process of modalization of these verbal expressions rests on the fact that: (a) they are followed by an infinitive; (b) they keep the form of the 3rd person sg.; (c) they tend toward reflexivization, i.e. the reflexive verbal form (patří / patří se, sluší / sluší se...); (d) these expressions are part of both subject sentences (with the patient in the nominative case) and subjectless sentences (with the patient in the accusative case).