When they have put up that building,it will spoil the view请问这个属于什么句型?为什么前半句不用将来时态?

问题描述:

When they have put up that building,it will spoil the view
请问这个属于什么句型?为什么前半句不用将来时态?

这句话是状语从句.也就是说When they have put up that building整体是主句it will spoil the view的时间状语.英语语法中有一个规定,就是当主句为将来时的时候,从句必是现在时(包括一般现在时与现在完成时).这句话...