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动词的过去式和原形一样,letletputputreadreadcutcut,遇见i改为a.,swimswamsingsangbeginbegansitsatgivegavedrinkdrank,过去式以ought和aught结尾的单词,bring broughtbuy boughtteach taughtthink thoughtcatch caught,中间去e,末尾加t,feel feltkeep keptsleep sleptsweep sweptmeet metfeed fed助记:动词中间两个e,去掉一个后加t,如是t,d来结尾,去e之后不加t.,把i变成o,ride rodedrive drovewrite wrote,ow/aw变为ew,know knewgrow grewthrow threwdraw drew,以d结尾的词,把d变为t,build builtlend lentsend sentspend spent,