動詞過去式的變化規(guī)律

1、動詞的過去式的變化規(guī)則:一、動詞過去時的變化有如下五種:1、一般情況下在詞尾加 -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 結(jié)尾的,則直接加 -d ,如:prepare d , love d , .3、 以輔音字母加 y 結(jié)尾的, 把 y 改 i 再加 -ed , study stud ied , worry-worried4、 重讀閉音節(jié)則重寫最后一個

2、輔音字母再加 -ed 。 如:stop ped , skip ped 5、 不 規(guī) 則 變 化 (即 特 殊 變 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 以后的發(fā)音有如下三種:1、 -ed 在清輔音 ptkfsh 后讀 t 如 : helped

3、 washed watch ed , mark ed finished , stop ped , skip ped cook ed , work ed2、 -ed 在濁輔音 bdgvzrmn 后及元音后讀 d 如:clean ed play ed Prepare d3、 -ed 在 td后讀 id ,如:paint ed started , visit ed 。不規(guī)則動詞的過去式的構(gòu)成1.把動詞原形中的 i 改為 a ,變成過去式。如:begin began , drink drank , give gave , ring rang ,sing sang , sit sat , swim sw

4、am2.把重讀開音節(jié)中的 i 改為 o ,變成過去式。如:drive drove , ride rode , write wrote3.改動詞原形中的 aw /ow 為 ew ,變成過去式。如:draw drew , grow grew , know knew , throw threw(動詞 show 除外, show showed 4.動詞原形中的 e 改為 o ,變成過去式。如:get got , forget forgot5.動詞原形中的 ee 改為 e ,變成過去式。如:feed fed , meet met, speed sped6.動詞原形中的 eep 改為 ept ,變成過去式

5、。如:keep kept , sleep slept , sweep swept7.動詞原形中的 eak 改為 oke ,變成過去式。如:break broke , speak spoke8.動詞原形中的 ell 改為 old ,變成過去式。如:sell sold , tell told9.動詞原形中的 an 改為 oo ,變成過去式。如:stand stood , understand understood10.以 ought 和 aught 結(jié)尾,且讀音是 :t的過去式。如:bring brought , buy bought, think thought , catch caughtte

6、ach taught11.以 ould 結(jié)尾且讀音為 ud 的情態(tài)動詞過去式。如:can could , shall should , will would12.把動詞原形中的 o 改為 a ,變成過去式。如:come came , become became13.在動詞原形后加 d 或 t 變成過去式,并且發(fā)生音變。如:hear heard , say said , mean meant14.動詞的過去式與動詞原形一樣。如:let let , must must , put put , read read red 15.不符合上述規(guī)律的動詞過去式。如:am , is was , are were , build built , do did , eat ate , fall fell , feel felt , find found , fly flew , go w