byc	be
bylem	was/were
stac sie	become
stawalem sie	became
zaczynac	begin
zaczynalem	began
ugryzc	bite
ugryzlem	bit
krwawic	bleed
krwawilem	bled
dmuchac , wiac	blow
dmuchalem,wialem	blew
zepsuc ,zlamac	break
zepsulem ,zlamalem	broke
przyniesc	bring
przynioslem	brought