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1、动词过去式变化规则,一、规则变化,1、 一般情况下,动词词尾加-ed,如： workworked playplayed wantwanted askasked,2、 以不发音的-e结尾动词,动词词尾加-d,如 ： livelived movemoved tastetasted,3、 以“辅音字母+y”结尾的动词, 把y改成i,加 ed,如： studystudied trytried copycopied carrycarried,4、重读闭音节动词,双写词尾辅音字母, 再加ed,如： stopstopped,二、不规则变化,is/ amwas arewere dodid have hasha
2、d gowent meetmet comecame taketook stealstole eatate,ringrang swimswam writewrote riderode drivedrove drawdrew growgrew knowknew getgot forgetforgot sweepswept keepkept sleepslept,speakspoke breakbroke telltold sellsold buybought thinkthought catchcaught teachtaught buildbuilt cancould shallshould willwould,过去式与动词原形一样,letlet mustmust putput readread cost-cost,A-A-A型,A-B-A型,A-B-C型,1.ow-ew-own,2.i-a-u,
