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Do的否定形式

do 的否定形式:do not 缩写:don't

据人称和单复数的不同而有字形的变化.第一第二人称,以及第一.二.三 人称的复数时,都用 do . 第三人称单数时,用 does( he does she does it does ) 例如:I do my homework on Sunday. You do your homework on Sunday. We do our homework

助动词do的否定是don't !实义动词do 的否定是 don't do

do 的否定形式:do not缩写:don't

把他们放在谓语前面就行,就用do.如果否定的话,does,如果想强调动词.主要用于陈述的肯定句,就和普通否定句一样了在英语句子中,和did来强调

你好.你首先应该知道:1 it is important + that + sb should (not) do sth是一个“习惯用法”.-------这是主语从句.2 在这种习惯用法中,should可以省略,所以你的句子是 it is important that pakistan (should) not become a failed state.

你在它后面加s,表明它是实义动词,所以needs的否定形式是doesn't need(to do sth)

do 的否定形式是 don't .祝你开心.

表示强调,反意I do don't like him.

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