多个谓语，用逗号连接，算语法错误吗

　　如果全部由逗号隔开是错误的。但是如果前面的谓语用逗号隔开，最后一个用and连接就是对的。举例说明：
　　He laughed and walked away.
　　他笑着走了。
　　分析：这是一个简单句，主语是he；谓语由俩个谓语动词组成，中间必须要and连接，否则就出错了。
　　She washed, dressed and went out.
　　她洗完脸，穿好衣服就出去了。
　　分析：这个句子主语是she；谓语很明显有三个，分别是washed, dressed 和 went。正确的是把前面俩个用逗号隔开，后面一个went用连接词and连接不上并列。
　　I got up、dressed myself、washed and had my breakfast.
　　我起床后，穿好衣服，洗洗，然后吃早饭。
　　分析：这是一个简单句。主语是I；谓语由4个动词got up、dressed myself、washed 和had
　　组成，前面的统统用逗号隔开，最后一个用and连接。否则就是语法错误。

同一个主语，后面的谓语动词有多个表并列关系，前面的用逗号隔开，后面要用连词连接起来。

1）一个主语+多个谓语（并列的谓语）: 前面的谓语要用逗号隔开，最后面的谓语要加并列连词and。
In the bathroom she put on some makeup,looked in the mirror and went out.
He went up to the door, opened it and entered.

特殊并列：
He went down the hill,through the street and into a small house by the road side.
【省略了重复的谓语动词went,而将went后面连接的几个介词直接并列】

2） 两个主语+两个谓语: 两个谓语之间要加and。
He and his parents got off the bus and walked into the house directly.

3、两个对象并列,正式表达,可以根据句子意思选用and,but,or,otherwise 等,直接用逗号也有,但不算正规表达.
Use your head and you will have a good idea.
Come to school on time,or you will be punished.

英语中多个谓语动词，应在最后两个动词之间加and。