规那么变化
【过去式的变化规那么】
① 一般情况下，在动词原形后直接加ed。
如：want---wanted，play---played
② 以不发音的字母e结尾的动词，直接加d。
如：hope---hoped，live---lived
③ 重读闭音节单词需双写最后一个辅音字母，再加ed。
如：stop---stopped, prefer---preferred
④ 以辅音字母+y结尾的动词变y为i，再加ed。
如：study---studied，worry---worried
⑤ 有些动词不符合上面的规那么，需要特殊记忆。
如：am(is)-was, are-were, go-went,  eat-ate,  swim-swam,  buy-bought, see-saw,  teach-taught,  bring-brought,  think-thought,  fall-fell,  hurt-hurt, break-broke,  win-won,lose-lost
动词过去式变化规那么
AAA型〔动词原形、过去式、过去分词同形〕
cost〔花费〕 cost cost cut〔割〕 cut cut
hit〔打〕 hit hit hurt 伤害〕 hurt hurt
let〔让〕 let let put〔放〕 put put
read 〔读〕 read read
(2) AAB型〔动词原形与过去式同形〕
beat〔跳动〕 beat beaten
(3) ABA型〔动词原形与过去分词同形〕
bee〔变成〕 became bee e〔来〕 came e
run〔跑〕 ran run
(4) ABB型〔过去式与过去分词同形〕
dig〔挖〕 dug dug get〔得到〕 got got
hang〔吊死〕 hanged hanged hang〔悬挂〕 hung hung
hold〔抓住〕 held held shine〔照耀〕 shone shone
sit〔坐〕 sat sat win 〔赢〕 won won
meet〔遇见〕 met met keep 〔保持〕 kept kept
sleep〔睡〕 slept slept sweep〔扫〕 swept swept
feel〔感觉〕 felt felt smell〔闻〕 smelt smelt
leave〔离开〕 left left build〔建立〕 built built
lend〔借出〕 lent lent send 〔传送〕 sent sent
spend〔花费〕 spent spent lose 〔丧失〕 lost lost
burn 〔燃烧〕 burnt burnt learn〔学习〕 learnt learnt
mean〔意思是〕 meant meant catch〔抓住〕 caught caught
teach〔教〕 taught taught bring〔带来〕 brought brought
fight 〔战斗〕 fought fought buy〔买〕 bought bought
think〔想〕 thought thought hear 〔听见〕 heard heard
sell〔卖〕 sold sold tell〔告诉〕 told told
say〔说〕 said said find〔到〕 found found
have/has〔有〕 had had make〔制造〕 made made
stand〔站〕 stood stood understand明白understood understood
(5) ABC型〔动词原形、过去式与过去分词三者不同形〕
begin〔开场〕 began begun drink〔喝〕 drank drunk
stop的过去式是什么
ring〔铃响〕 rang rung sing 〔唱〕 sang sung
swim〔游泳〕 swam swum blow〔吹〕 blew blown
draw 〔画〕 drew drawn fly〔飞〕 flew flown
grow〔生长〕 grew grown know〔知道〕 knew known
throw〔投掷〕 threw thrown show〔出示〕 showed shown
break〔打破〕 broke broken choose〔选择〕 chose chosen
forget〔忘记〕 forgot forgotten (forgot) speak〔说，讲〕 spoke spoken
wake〔醒〕 woke woke drive〔驾驶〕 drove driven
eat〔吃〕 ate eaten fall〔落下〕 fell fallen
give〔给〕 gave given rise〔升高〕 rose risen
take〔取〕 took taken mistake〔弄错〕 mistook mistaken
ride〔骑〕 rode ridden write〔写〕 wrote written
do〔做〕 did done go〔去〕 went gone
lie〔平躺〕 lay lain see〔看见〕 saw seen
wear 〔穿〕 wore worn
be ( am, is, are )〔是〕 was, were been
① 一般情况下，在动词原形后直接加ed。
如：wanted，played。
② 以不发音的字母e结尾的动词，直接加d。
如：hoped，lived。
③ 重读闭音节单词需双写最后一个辅音字母，再加ed。如：stopped, shipped。
④ 以辅音字母+y结尾的动词变y为i，再加ed。
如：studied，worried。
⑤ 有些动词不符合上面的规那么，需要特殊记忆。
如：am(is)-was, are-were, go-went, eat-ate,
swim-swam, buy-bought, see-saw,