It’s time that (过去式—)
　　remark on sth
　　see to it that
　　relate sth to sb.
　　Lest/ in case/unless /suppose /as if/for fear that/on
　　condition等词引导的目的状语从句中，谓语动词多用虚拟语气，(should) 动词原形
　　Not so much…as 与其说…不如说
　　so much as that
　　take sth into account /consideration
　　see to doing sth
　　none other than
　　Could have done
　　Must have done
　　Should have done
　　Never/ seldom/ rarely/ hardly/ barely/ scarcely/ little/
　　few位于句首引起主谓部分倒装
　　May just as well
　　order/ ask/ demand/ command/ request/ require that 虚拟语气