1、当主语是and，both....and连接的并列结构：如果主语指的是两个或两个以上的人或物，则谓语动词用复数。例句：My mother and i
have seen the film
注：由and连接的并列主语前面分别有each，every，no修饰时，其谓语动词用单数形式。例句：Every boy and every girl
has to receive education in our country
2、就前原则：如with，along with，together with，as well as,like,rather
than,but,except,besides,including,in addition to,谓语动词同前面主语一致的关系例句：All but one
were here just now
3、“many a/more than one+单数名词”作主语时：谓语动词用单数形式例句：many a students has been to beijing
4、“one of+复数名词+定语从句”之前有the only,the very,the 等限定词和修饰语时：定语从句的谓语动词用单数形式例句：Tom is the only one of those boys who is willing to help the old man
5、成双成对的名词作主语如glasses，scissors，shorts，shoes等作主语：其后面的谓语动词用复数形式。例句：His trousers are made of cotton
注：若这类名词前带有pair 等表示单位的名词时，则以这些单位名词的单、复数形式决定动词的形式。
例句：This pair of shoes is not on sale
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