怎样知道一个英语句子里是不是缺少动词?

问题描述:

怎样知道一个英语句子里是不是缺少动词?
比如:The soldiers executived the captain's orders as soon as they received the telegraph.这个句子里的executive为什么是动词了?(不好长篇大论)

as soon as 后面是从句,先放在一边.
主句是The soldiers(主语) executived (谓语)the captain's orders(宾语).
从成分分析它是谓语动词,从形式看,它加了-ed,是动词的过去时.
所以肯定是动词了,不然executived就没法解释了.明白了 呵呵。老忘记是谓语动词。