规则变化遵循以下原则

1、规则变化遵循以下原则：(1) 一般情况下，在动词后加 ed 构成：work / worked, stay / stayed, shout / shouted 等。(2) 在以-e 结尾动词后只加 d： close / closed, like / liked, live / lived, smile / smiled 等。(3) 以辅音字母加y结尾的动词，应将y改为i再加-ed : study / studied, carry / carried 等。(4) 以重读闭音节或r音节结尾且末尾只有一个辅音字母动词，要双写末尾的 辅音字母再力卩-ed : stop / stopped, admit

2、/ admitted, refer / referred,prefer / preferred 等。不规则动词变化表现在式过去式过去分词A-B-B 型saysaidsaidlaylaidlaidpaypaidpaidsellsoldsoldtelltoldtoldcatchcaughtcaughtteachtaughttaughtfightfoughtfoughtbuyboughtboughtbringbroughtbroughtthi nkthoughtthoughtseeksoughtsoughthave/hashadhadhearheardheardmakemademadebuildbu

3、iltbuiltlear nlearn ed/lear ntlearn ed/lear ntlendlen t/lear nedlen t/lear nedsendsentsentbendbentbentspe ndspe ntspe ntsitsatsatgetgotgot/gotte nshootshotshotloselostlostwinwonwonshi neshon e/shi nedsho ne/shi nedsmellsmeltsmeltspellspeltspeltholdheldheldfeelfeltfeltkeepkeptkeptweepweptweptsleepsle

4、ptsleptsweepsweptsweptkn eelkneltkneltmeetmetmetleaveleftleftmea nmea ntmea ntdigdugdugsta ndstoodstoodun dersta ndun derstoodun derstoodfin d/fo undfound/foun dedfound/foun dedA-B-A 型runranruncomecamecomebecomebecamebecomeA-B-C 型singsangsungringrangrungdrinkdrankdrunkspri ngspra ngspr ungbegi nbega

5、 nbeg unswimswamswumspeakspokespokenstealstolestole nbreakbrokebroke nchoosechosechosenbitebitbitte nhidehidhidde nbearborebor nteartoretornwearworewornswearsworeswornriseroserise ndrivedrovedrive nrideroderidde nwritewrotewritte ntaketooktakenmistakemistookmistake nknowknewknowngrowgrewgrow nthrowt

6、hrewthrow nflyflewflowngowentgonedodiddonegivegavegive nforgiveforgaveforgive nforgetforgotforgotte nseesawsee neatateeate nfallfellfalle nlielay/liedlai n/liedshowshowedshow nBewas, werebee n(am, is, are)A-A-A 型betbetbetcostcostcosthithithithurthurthurtletletletreadreadreadA-B-型（变化不完全的）shallshouldw

7、illwouldcancouldmaymight动词的规则变化现在式过去式过去分词playplayedplayedworkworkedworkedwantwan tedwan tedenden deden dedtha nktha nkedtha nkedlikelikedlikedlivelivedlivedagreeagreedagreed辅音+y i+edcrycriedcriedtrytriedtriedcarrycarriedcarriedmarrymarriedmarriedstudystudiedstudiedsatisfysatisfiedsatisfied兀音+y yedplayplayedplayedstaystayedstayedenjoyenjo yedenjo yed双写最后一个字母+ edshopshoppedshoppedbegbeggedbeggedrobrobbed