如果句子里面有动词,表达一种动作,跑啊,跳啊之类的，可以加“not”。
句中含有动词可以加“not”
比如
do not run / do not jump / do not drink water / do not have apples
be动词三种时态缩写
1.一般现在时态
am not =>无缩写形式
is not => 缩写 isn't
are not => 缩写aren't
2.过去时态
was not => 缩写 wasn't
were not => 缩写weren't
3.完成时态
not been =>无缩写形式
说明：完成时态时使用have not been的形式，not在be动词前面。
例句：
1.He has not yet learned how to be gracious in defeat.
他还没有学会怎样豁达大度地面对失败。
2.They are not to be mentioned in the same breath.
他们不可同日而语.