perfect construction
Anton V. Zimmerling. A tale of two auxiliaries: third person forms of byti in Old Russian
RJANO. 2022. № 2 (44), Pages. 9 - 84
ISSN 1681-1062 (print)
ISSN 2658-5022 (online)
ISSN 1681-1062 (print)
ISSN 2658-5022 (online)