那从句呢
追答如，Tom put on his coat and went out of the house.这句就是并列谓语，这句可以改成Tom put on his coat, going out of the house.
从句也是句子所以一样可以有多个谓语。
判断一个句子的前提就是必须有谓语，这个谓语就是用相应时态所表达的形式。
不要把非谓语当做谓语，不然你就无法判断它是否是句子。
如，Time permitting, I will go to see you.中的time permitting就不是从句而是非谓语形式，它等于从句If time permits,I will ,,,,,
追问Peter received a letter just now saying his grandma would come to see him soon这个句子好多动词，怎么区分谓语和非谓语呢
追答主语发出的动作且放在主语后的就是谓语，saying是现在分词作定语修饰名词letter,saying后面的是一个宾语从句，从句中的would come是谓语，to see him soon是不定式短语做目的状语。
追问非常感谢老师耐心解答
As the light turned green,I stood for a moment，not moving，and asked myself what i was going to do这个句子asked做的也是谓语吗，what后面是从句吗，moving是非谓语？
追答你说的都对。
追问谢谢老师，麻烦了