be was been	byc
bear bore born	nosic
beat beat beaten	bic
become became become	zostac
begin began begun	rozpoczynac
bite bit bitten	gryzc
blow blew blown	dmuchac
break broke broken	tluc
bring brought brought	przynosić
build built built	budowac
burn burnt burnt	plonac
burst burst burst	pekac
buy bought bought	kupowac