Anthony 發問於 社會及文化語言 · 1 十年前

Is 'need to' a modal auxiliary?

e.g. We need to work hard. 'Need to' seems to be an epistemic modal!

2 個解答

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  • ?
    Lv 7
    1 十年前
    最愛解答

    need to並不是助動詞(a modal auxiliary)

    need其實也可以作助動詞時,但它助動詞時通常用於否定句或疑問句,並助如may, can等等的助動詞,後面直接跟著動詞便可,並不用to infinitive(to不定詞)。而作助動詞的need,即使主詞為第三人稱單數現在時式,也不可加-s,並且否定形和疑問形也不用do,此外,它後面不接名詞及代名詞,而本身也沒有過去形。

    如:He need not come.(他不必來)

    I need hardly say that I like you very much.(不用說,我當然非常喜歡你)

    請你留意以下兩句的分別

    You need not have done so.(你並不必這樣做)(need作助動詞)

    You did not need to do so.(你不必這樣做)(need 作主動詞)

    2007-04-28 10:16:54 補充:

    其實你不應將need to連在一起,這句應這樣分:We(subject) need(main verb) [to work] (to infinitive) hard (adverb)

  • 1 十年前

    'need to' is not a modal auxilliary, it's just used as an ordinary verb here, simply because 'need' is usually followed by the 'infinitive' with 'to'

    ie Everyone needs to rest sometimes

    Modal auxiliary form:

    --> 'need' will followed by an 'infinitve' without 'to'

    ie You need not fill in a form.

    in this sense, the modal 'need' refers to immediate necessity and give permission but not general necessity or habitual

    2007-04-28 12:53:02 補充:

    epistemic modal refers to a possibility or estimates likelihood of a fact or eventie He must be on his way to school. fromThe Cambridge Guide to English Usage by Pam Peters

    資料來源: Practical English Usage by Michael Swan
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