## 否定句 ### 功能 說不 ### 構成 在be動詞后面加上not,否定句的核心就是not. ``` is not am not are not ``` ### 例句 is am are 的選擇是根據主語來的. ``` This is my name. This is not my name. ``` ``` i am not teacher. ``` ``` they are not my books. ``` ### 縮略形式 在口語中使用的是最多的. 讀音也會發生變化. 有的音被去掉了或者改變讀音. 在書面中也可以縮寫,除非是非常正式的文件. ``` is not = isn't //t的讀音經常被省略 ``` ``` am not = 'm not ``` ``` are not = aren't ```