基本上，主词搭配动词的概念是以下列两个原则为主： 1.单数主词搭配单数动词： Chen rides his scooter to work every day. 2.复数主词搭配复数动词： The students are climbing the walls like caged animals. 主词与动词的搭配原则看似十分容易，却也是作者最容易疏忽和犯错的地方。我们在编修论文时，最常修正的错误之一就是主词与动词的搭配。是什么原因让主词与动词的搭配变得这么困难？ 其中一个原因是，当作者遇到又长又复杂的主词时，可能会被搞得昏头转向，而容易忘记哪一个名词才是整个主词片语的中心词，于是不小心将动词搭配给最靠近的名词，范例如下： The arrival of new fall fashions have excited all the back-to-school shoppers. 此句的中心词应为arrival，而非fashions，因此应将句子改为： The arrival of new fall fashions has excited all the back-to-school shoppers. 另一个Essay代写陷阱是不使用标准的文法搭配规则，而是按照作者的意念来决定搭配方式，也就是不论真正的主词为单数或复数，动词搭配的是作者意念中的那一个主词。 Twenty-five rules is a lot to digest. 在此范例中，「25条规则」被视为一个整体的单数的主词，因此后面接单数动词is。 Twenty-five rules are listed on the notice. 这「25条规则」全部被列在公告中，25条规则在这里当复数主词，后面接复数动词are。 以下列出10种主词与动词的搭配规则，供大家写作时参考： 1.除非主词的原意是单数，否则如果主词当中的数个名词是以and衔接，一律将主词视为复数。 She and I run every day.（她和我，复数主词衔接复数动词） Peanut butter and jelly is my favorite sandwich.（主词的原意是单数，衔接单数动词） 2.如果主词当中的数个名词是以or衔接，动词一律根据最后一个名词做变化。 She or I run every day. Potatoes,pasta,or rice pairs well with grilled chicken. 3.集合名词（例如team、couple、staff）可搭配单数或复数动词，端看作者欲强调主词的个别性或整体性。 The baseball team is practicing night and day for the final game. The entire staff has done a great job this year. 4.连接词（例如combined with、coupled with、accompanied by、added to、along with、together with、as well as）不会改变主词的单复数特性，这些连接词通常会使用逗号隔开。 Oil,as well as gas,is a popular heating choice. Peanut butter combined with bread and jelly is a tasty snack.（这里的peanut butter、bread、jelly是一个整体，指的是一整个三明治，因此不需要使用逗号隔开，动词依然是单数。） 5.集合名词的片语（例如a bunch of、a group of、a set of）可搭配单数或复数动词，端看作者欲强调主词的个别性或整体性： A group of boys were digging in my flower beds! A set of 12 dishes is all you need for the dinner party. 6.Each搭配单数动词。 Each boy is excited about the meet;each is well prepared. 7.None若指单数名词，则搭配单数动词；若指复数名词，则搭配复数动词。 None of the peas are left on Sean's plate. None of the book is reproducible without permission. 8.碰到分数时，动词是搭配名词全体。 One-fourth of the books are gone. One-fourth of the sand is white. 9.碰到金额时，具体数字使用单数动词，不具体数字则用复数名词。 Within a year,$5 million was spent on building a new factory,and millions more were spent on training future factory workers. 10.片语more than one搭配单数动词（这确实听起来不合逻辑，但切记：无论one后方是否出现承接的名词，one后方一定接著名词） More than one box is sitting in the hallway. More than one is sitting in the hallway.