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等詞引導(dǎo)的目的狀語從句中，謂語動(dòng)詞多用虛擬語氣，+動(dòng)詞原形

　　Not so muchas 與其說不如說

　　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位于句首引起主謂部分倒裝。

　　May just as well

　　order/ ask/ demand/ command/ request/ require that+虛擬語氣