不規(guī)則動詞過去式的構(gòu)成小學英語語法

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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—swam
    2.把重讀開音節(jié)中的i改為o,變成過去式。如:
    drive—drove,ride—rode,write—wrote
    3.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—forgot
    5.動詞原形中的ee改為e,變成過去式。如:
    feed—fed,meet—met
    6.動詞原形中的eep改為ept,變成過去式。如:
    keep—kept,sleep—slept,sweep—swept
    7.動詞原形中的eak改為oke,變成過去式。如:
    break—broke,speak—spoke
    8.動詞原形中的ell改為old,變成過去式。如:
    sell—sold,tell—told
    9.動詞原形中的an改為oo,變成過去式。如:
    stand—stood,understand—understood
    10.以ought和aught結(jié)尾,且讀音是[ :t]的過去式。如:
    bring—brought,buy— bought,think—thought,catch—caught,teach—taught
    11.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—would
    12.把動詞原形中的o改為a,變成過去式。如:
    come—came,become—became
    13.在動詞原形后加d或t變成過去式,并且發(fā)生音變。如:
    hear[hi ]—heard[h :d], say[sei]—said[sed],mean[mi:n]—meant[ment]
    14.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—went,have /has— had,hold—held,leave—left,make—made,may—might,run—ran,see—saw,take—took