awake  awoke  awoken

be  was/were  been

beat  beat  beaten

become  became  became

begin  began  begun

bend  bent  bent

bite  bit  bitten

blow  blew  blown

break  broke  broken

bring  brought  brought

build  built  built

burn  burst,burned  burst,burned

burst  burst  burst

buy  bought  bought......

唔打啦.無聊!