新概念英語語法詳解:不規(guī)則動詞的用法

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所謂動詞的詞形變化是指謂語動詞表達時態(tài)、語態(tài)、語法時的動詞詞尾的形式變化。這種詞形變化基本上分為“原形(Root Form),過去式(Past Form),和過去分詞(Past Participle)”三形的詞尾變化,例如:
    規(guī)則動詞:
    work worked worked (工作)
    like liked liked (喜歡)
    study studied studied (學(xué)習)
    不規(guī)則動詞:
    do did done (做)
    see saw seen (看)
    write wrote written (寫)
    謂語動詞在表達時態(tài)、人稱、數(shù)等時尚有詞尾的詞形變化,惟這些詞尾變化在現(xiàn)代英語都是有固定的變化規(guī)則,例如:
    原形 第三人稱單數(shù) 現(xiàn)在分詞
    need needs needing
    go goes going
    study studies studying
    所以英語的動詞在表達上共有下列五種詞形:
    1.原形:work,do
    2.第三人稱單數(shù)、一般現(xiàn)在時形式:works,does
    3.過去式:worked,did
    4.過去分詞:worked,done
    5.現(xiàn)在分詞:working,doing