Abstract
This paper attempts to capture the distribution of verb forms of the original s-participle for singular masculinities of the type pad etc. in verbs of the 1st and 2nd infinitive class whose stem ended in a consonant. These forms are formally homonymous with the forms of the original l-participle for the singular masculine, for which historical grammars assume the dropping of the final -l as early as during the 14th century.
The essence of the analysis is an attempt to establish how one form coexists within two morphological verb categories in Czech during the 14th and 15th centuries