This paper presents an analysis of so-called double-paradigm verbs (muset – musit, bydlet – bydlit, myslet – myslit, šílet – šílit, kvílet – kvílit and hanět – hanit) in contemporary Czech which is based on data from two Czech corpora: SYN2010 and SYN2009PUB. There is a common assumption in the literature that these verbs are classified as having two distinct paradigms: a “prosit- paradigm” and a “sázet-paradigm” (or in some cases a “trpět-paradigm”). The analysis shows that this assumption is false for contemporary Czech. It is shown that these verbs behave differently: muset, kvílet and šílet are used according to the “sázet-paradigm”, myslet and bydlet according to “trpět-paradigm” and the verb hanět is even more specific (present forms are used according to the “prosit-paradigm” and infinitive forms vary between the usage of stem suffix -e- and -i-). It is thus demonstrated that these verbs do not form a distinct category in contemporary Czech.