本文讲解考研英语语法之【肯定与否定一致关系】。语法是英语学习的基础，语法大关不过，阅读、完型、翻译和写作都会有难度，就别提过线和拿高分了。所以说，基础阶段，语法基础要打好。请关注新东方在线2020考研英语语法大全系列文章，我们一起来梳理考研英语所需的基础语法和重点语法：
肯定与否定一致关系
下列形容词、副词、代词从肯定句变成否定句时，须作相应的变化:
| 肯定句 | 否定句 |
| We\'ve had some money. | We haven\'t had any money. |
| I was talking to someone | I wasn\'t talking to anyone. |
| They sometimes visit us. | They rarely (never, seldom) visit us. |
| He has arrived already. | He hasn\'t arrived yet. |
| Li is coming too. | Li isn\'t coming either. |
| Both of us are going. | Neither of us are going. |
| He likes both of them. | He doesn\'t like either of them. |
注意：“so/neither+助动词/情态动词+名词/代词”结构中须用倒装语序，
如：My wife likes classical music very much and so do.
She doesn\' t like jazz and neither do.