> 副词:可以修饰动词、形容词、其它副词以及其它结构
```
He runs fast.
She is very beautiful.
They work very hard.
```
# 副词的位置
1. 根据情况,放在助动词之后,实意动词之前或之后
2. 形容词之前
3. 其它副词之前或之后
4. 多个助动词时,副词一般放在第一个助动词后
```
He speaks very fast. 他讲地非常快。
副词very放在实意动词speak之后
They have already left. 他们已经离开了。
副词already放在助动词have后面,实意动词left前面。
They have already been repaired. 他们已经被修好了。
完成时的被动语态
```
常用的频度副词(always,usually,often,sometimes,never...)的位置通常放在一般动词前面,be动词后面,动词和实意动词之前。
```
They always come early.
Sam often writes homework at 7:00.
```