Balkan Slavic (Nestorio). Aspect: Opposition of forms inside the paradigm, 3

I tuoj pisa enu pismu šfjera.
i
and
tuoj
3SG.M.NOM
pis-a
write(IPFV)-AOR.3SG
enu
INDEF
pism-u
letter(N).SG
šfjera
yesterday
And he wrote a letter yesterday.
Type: Elicited from speaker
Source: Schmieger 1998: 363