1 On no account can we + V
例句：On no account can we ignore the value of knowledge.
2 It i time + S + 过去式
例句：It i time the authoritie concerned took proper tep to olve the traffic problem.
3 There i no one but
例句：There i no one but long to go to college.
4 be + forced/compelled/obliged + to + V
例句：Since the examination i around the corner, I am compelled to give up doing port.
5 It pay to + V
例句：It pay to help other.
6 Spare no effort to + V
例句：We hould pare no effort to beautify our environment.
7 ~~~ the + ~ et + 名词 + + 主词 + have ever + een
~~~ the mot + 形容词 + 名词 + + 主词 + have ever + een
例句：Helen i the mot beautiful girl that I have ever een.
8 Nothing i +er than to + V Nothing i + more + 形容词 + than to + V
例句：Nothing i more important than to receive education.