动词过去式的变化规律

1、动词的过去式的变化规则:一、动词过去时的变化有如下五种:1、一般情况下在词尾加 -ed 如:clean ed , help ed , play ed , wash ed , watch ed , mark ed paint ed , cook ed , work ed , start ed , finish ed , talk ed , call ed .2、 e 结尾的,则直接加 -d ,如:prepare d , love d , .3、 以辅音字母加 y 结尾的, 把 y 改 i 再加 -ed , study stud ied , worry-worried4、 重读闭音节则重写最后一个

2、辅音字母再加 -ed 。 如:stop ped , skip ped 5、 不 规 则 变 化 (即 特 殊 变 化 :is was am was isn t wasn t are were aren t weren t do did don t-didn t eat ate feel felt go went get got have had has had make-made run ran read read ride rode see saw say said swim-swam ,二、加 ed 以后的发音有如下三种:1、 -ed 在清辅音 ptkfsh 后读 t 如 : helped

3、 washed watch ed , mark ed finished , stop ped , skip ped cook ed , work ed2、 -ed 在浊辅音 bdgvzrmn 后及元音后读 d 如:clean ed play ed Prepare d3、 -ed 在 td后读 id ,如:paint ed started , visit ed 。不规则动词的过去式的构成1.把动词原形中的 i 改为 a ,变成过去式。如:begin began , drink drank , give gave , ring rang ,sing sang , sit sat , swim sw

4、am2.把重读开音节中的 i 改为 o ,变成过去式。如:drive drove , ride rode , write wrote3.改动词原形中的 aw /ow 为 ew ,变成过去式。如:draw drew , grow grew , know knew , throw threw(动词 show 除外, show showed 4.动词原形中的 e 改为 o ,变成过去式。如:get got , forget forgot5.动词原形中的 ee 改为 e ,变成过去式。如:feed fed , meet met, speed sped6.动词原形中的 eep 改为 ept ,变成过去式

5、。如:keep kept , sleep slept , sweep swept7.动词原形中的 eak 改为 oke ,变成过去式。如:break broke , speak spoke8.动词原形中的 ell 改为 old ,变成过去式。如:sell sold , tell told9.动词原形中的 an 改为 oo ,变成过去式。如:stand stood , understand understood10.以 ought 和 aught 结尾,且读音是 :t的过去式。如:bring brought , buy bought, think thought , catch caughtte

6、ach taught11.以 ould 结尾且读音为 ud 的情态动词过去式。如:can could , shall should , will would12.把动词原形中的 o 改为 a ,变成过去式。如:come came , become became13.在动词原形后加 d 或 t 变成过去式,并且发生音变。如:hear heard , say said , mean meant14.动词的过去式与动词原形一样。如:let let , must must , put put , read read red 15.不符合上述规律的动词过去式。如:am , is was , are were , build built , do did , eat ate , fall fell , feel felt , find found , fly flew , go w