Its time that

　　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，+动词原形

　　Not so muchas 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