你好，英语中的否定主干是简单句中含有系动词be、情态动词和助动词时，变否定句时需在系动词be、情态动词和助动词后加not。
英语否定句的主干是分成不同的形式，英语中的否定得基本特征:含有否定词(语) 。
例如:(1) not, never, seldom, hardly, nor,
(2)no, few,, neither,
(3none, nothing, nobody,
()without, but, except
含有否定词缀得词,也就是一种否定意义得表达手段。但不属于否定结构或否定句
2,从否定
一般讲,从否定词开始到句末,或到表示停顿得标点为止。在口语中,句末用升调,表示修饰形状语在否定范围之内,反之则在范围之外。下列句子得划线部分就是否定范围:
(1) I didn't see Jack in the cinemayesterday.
(2) None of them passed the exam
(3) I didn't go there because l was afraidof him
(4) I didn't go there, because I was
afraid of him、 (我没去那儿,因为我怕她。)
句(3)在书面语中意义不明确:可能就是"我没去那儿,因为我怕她"; 也可能就是"我去那儿并不就是因为怕她"。英语中否定手法
1,全句否定与局部否定(也称"一般否定与特指否定")
1.1全句否定(general negation):结构上not, never否定谓语或no否定名词。
(12) They are not interested in thesesubject.
(13) You can't take these books out of thereading-room
(14) There is no time to be lost
1.2局部否定(special negation): not置于某个特定对象之前。
(15) You must always remember not tobecome conceited
(16) The moon gives no light of its own.
局部否定用得很少,通常采用全句否定形式，希望可以帮助你。
