we desire that the tour guide inform us immediately of any change in plans
问题描述：
we desire that the tour guide inform us immediately of any change in plans
为什么是inform 而不是informs,the tour guide 不属于第三人称吗?
答
we desire that the tour guide (should)inform us immediately of any change in plans
这句话里面省略了should,
desire that .表示是要求某人做.后面从句为虚拟语气.
此类用法的词还有command,urge,request,等等