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He has never needed to hurry more than now.（他从来没有现在这样需要急忙的。）
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I may need to come in again in a few days.（也许过几天我还得再来。）
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Not needing to hurry， I walked along leisurely.（既不用忙，我就很悠闲地慢慢走去了。）
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I made them much bigger than I need to have done.—— Jespersen（我把它们做得比必要的大多了。）
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That does not need accounting for.= That needs no accounting for.（那个不必解释。）
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关于助动词 need 的用法，照文法上的规则，是在问句和否定句中，need 要拿来当助动词用，即是主语第三人称单数现在不加“s”，不用 Do- Form，后接无“to”的不定词，不过也常有例外。
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Need he hurry？（他必须赶快吗？）这句改用正动词也是一样的意思： Does he need to hurry？
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You need not have given yourself such trouble.（你原用不着这样给自己找麻烦的。）
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It need not be true.（这不一定是事实。）
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助动词的 need，过去式和现在式一样，形式不变，即是不要写成 needed 的形式，例如：
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The children were told that they need not stay.—— A. S. Hornby（告诉孩子们没有留下的必要。）
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如上例所示在 Reported Speech（转述的话）中，这个现在式的 need 可作过去式用，至于在问句或否定句中可以有这种用法，更不待言。
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Need he go yesterday?= Did he need to go yesterday?（在昨天他有去的必要吗？）
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He need not go yesterday.= He did not need to go yesterday.= He needed not to go yesterday.（他昨天没有去的必要。）
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He need not have any help from us yesterday.= He need have no help from us yesterday.= He did not need to have any help from us yesterday.= He needed not to have any help from us yesterday.= He needed to have no help from us yesterday.（昨天他不需要我们的任何帮助。）
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有些句子多少含有否定或疑问意味的，都适用上述的用法，如：
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He need only （或 but）have a little help from us yesterday.（他昨天只消我们稍予帮助就好了。）这句也可以说： He needed only （或 but）to have a little help from us yesterday.
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All he need do was to inquire.（他只消问一声。）
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She wanted me to tell her whether she need copy her composition again.（她要我告诉她看她的作文要不要重抄一遍。）
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I wondered if he need wait any longer.（我急想知道他是否有再等的必要。）
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不单是指过去，现在时也是一样，如： All he need do is to inquire 及 I wonder if he need wait any longer.等。不过这些句子中的 need 也可改为 needs to，正如上述过去时可改用 needed to 一样。
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这个加否定用的 need 后接不定词时，可译作“不必…才能…”或“也许不…而也能…”，如：
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You need not be （或 do not need to be）rich to help others.（你不必富有才能帮助别人；你也许不富有而也能帮助别人。）
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One need not be （或 does not need to be）a poet oneself to teach poetry.（教诗不一定要诗人。）
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