to be was/were been
to bear bore born
to beat beat beaten
to become became become
to begin began begun
to bend bent bent
to bind bound bound
to bite bit bitten
to blow blew blown
to break broke broken
to bring brought brought
to build built built
to burn burnt burnt
to buy bought bought
to can could
to catch caught caught
to choose chose chosen
to come came come
to cost cost cost
to creep crept crept