原形 过去式 过去分词。
baby-sit临时照顾 baby-sat baby-sat；
be(am/is/are)是 was/were been；
beat 击打 beat beaten；
become 变成 became become。
扩展资料
begin 开始 began begun
bend 使弯曲 bent bent
bet 赌 bet bet
bite 咬 bit bitten/bit
blow 吹 blew blown
break 打破 broke broken
bring 拿来 brought brought
build 建造 built built
burn 燃烧 burnt/burned burnt/burned
buy 买 bought bought
can 能 could
