四個奇特的英文助動詞

助動詞像是do, can, will, should, must, could… 的運用通常是：…助動詞+V原型…。如果是要表達否定，句子就會多個not而變成：助動詞+(not) +V原型

以下是四個特別的助動詞，要注意dare跟need也是動詞，使用方式不同。

1. …had better… 最好…
   We had better read more books about computers. 我們最好多讀一些有關電腦的書。
   We had better not spend too much money on clothes. 我們最好別花太多錢在衣服上。
   *We had better have spent more time studying. 我們(當時)真該多讀書。
2. …would rather… (than)…寧可… (而不願)…
   I would rather stay at home than go out.我寧可待在家也不想出去。
   I would rather not go out with them. 我寧可不跟他們出去。
   *I would rather May had not heard about it. 我寧可May沒聽說那件事。 
3. …dare…膽敢…/ …dare not…不敢
   The boy dare not tell his father what he just did.那男孩不敢告訴他爸他剛做了甚麼。
   *How dare you ask me such a question? 你怎敢問我這樣的問題？
4. …need…需要…
   You needn’t trouble about it. 你不必為這費事了。
   *Need you go so soon? 你需要這麼早走嗎 ？

   (句法規則只是規則，缺少全文說寫訓練不可能變成英語高手。)