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* 不规则动词表 分类记忆 AAB型 become come run beat ABA型 -- beat -- beaten -- became -- become -- came -- come -- ran -- run cost cut hit hurt let put read set shut spread AAA型 -- cost -- cost - cut -- cut - hit -- hit - hurt -- hurt - let -- let -- put -- put - read -- read - set -- set - shut -- shut - spread -- spread begin drink ring sing swim ABC型 -- began -- begun -- drank -- drunk -- rang -- rung -- sang -- sung -- swam -- swum 1. 只变化一个字母 be bear blow break choose do draw drive eat 2. 过去式变化一个/两个字母，过去分词以-n/-en结尾 fall fly forget give go grow hide know lie --was/were --been --bore --born --blew --blown --broke --broken --chose --chosen --did --done --drew --drawn --drove --driven --ate --eaten --fell --fallen --flew --flown --forgot --forgotten --gave --given --went --gone --grew --grown --hid --h