as subject,with a coordinate subject,with expressions of quantity as subject,and other problems of subject-verb concord were dwelt on. 十六、否定(Negation) Negation plays an important role in English language all the time.From this lecture we knew what negation means and how it is formed and the uses of negation and some exceptions were talked about here too. 十七、倒装(Inverted Order) Inverted order are discussed in this lecture. Generally,inversion can be divided into two kinds:complete inversion and partial inversion. 13 as subject, with a coordinate subject, with expressions of quantity as subject, and other problems of subject-verb concord were dwelt on. 十六、否定（Negation） • Negation plays an important role in English language all the time. From this lecture we knew what negation means and how it is formed and the uses of negation and some exceptions were talked about here too. • 十七、倒装（Inverted Order） • Inverted order are discussed in this lecture. Generally, inversion can be divided into two kinds: complete inversion and partial inversion