虚拟语气的用法错误.
随着说话人意图的不同,动词也要用不同的形式.但凡提到虚拟语气,都与谓语动词的形式有关,所以一定要注意用谓语动词的正确形式.例如：
（ 1 ） Had Paul received six more votes in the last election,he would have been our chairman now.
应把 would have been 改为 would be .这是个错综复杂的条件句,因为有 now 限制,所以主句和从句属不同的时间范畴.
（ 2 ） The committee members propose that the plan is postponed for a few days.
应把 is postponed 改为 be postponed .这是虚拟语气在宾语从句中的应用.像 propose 这类词,如：request,advise,prefer,urge,order,insist,desire,move,recommend,suggest,demand,require,determine 等若出现在主句里,其从句中的谓语动词一定要用虚拟语气即（ should ） + 动词原形,表示要求、建议、命令、提议、意愿等.