Bulgarian (Pozharevo). Pluperfect: One pluperfect, 1

ний‿б’а съ‿върнъли биз‿мама nij‿b’a să‿vărnăli biz‿mama
nij
1PL.NOM
b’a
be(IPFV).IPRF.3SG.AUX/PTCL
REFL
vărnă-l-i
come_back(PFV)-PTCP-PL
biz
without
mam-a
mom(F)-SG
we had come back without mom (Pluperfect with the uninflected form of the auxiliary verb - clitic b’a)
Type: Naturalistic spoken
Source: Kochev 1969: 75