一、如果主語是不可數名詞,動名詞,不定式或從句的時候,謂語動詞用單數.

Smoking is not a good habit.

To live happily needs a lot of things.

What I said is true.

二、如果由and連接的兩個做主語的單數名詞指的是同一個人或物的時候,用單數動詞.

The singer and songwriter is dead.

The science and technology plays an important part in China.

Bread and butter(=buttered bread) is a good food for patients.

“War and Peace” is the best book I have ever read.

如果由and連接的兩個或更多的主語之前有each, every, many a/an, no的時候用單數名詞.

Every boy and girl in the class works very hard.

Each minute and second is valuable to us.

三、主語是單數, 后面跟有with, along with, together with,besides, as well as, but, except, no less than,rather than, more than, like, including, in addition to 的時候, 謂語動詞用單數.

Jack with his family wants to go to China.

He, as well as you, is very honest.

No one but I is a student.

Her brother, together with his wife and children, was killed in the accident.

The father, rather than the brothers, is responsible.

四、由some, any, no, every構成的復合代詞(sb,sth---)和each, either, neither, one, the other, another, little, a little, much, no one, nothing做主語的時候,謂語動詞用單數.

Each of you is cleverer than me.

Neither student has passed the exam.

Is anybody here?

五、both, few, a few, several, many以及others做主語的時候,

永遠用復數動詞.

Several friends were invited to the party.

Both books are sold out.

六、all, none, any, some, more和most要是修飾單數名詞,謂語動詞用單數; 若是修飾復數名詞,就用復數動詞.

Most of the apple is bad.

Most of the apples are bad.

None of this money is yours.

None of the people here are teachers.

七、 由or連接的兩個以上主語時,動詞和最接近的主語一致.

You or he is wrong.

Are you or he wrong?

由either…or, neither…nor, not only…but also連接的兩個以上主語時,動詞和最近的主語一致.

Either he or you have to tell the truth.

Neither my brother nor his friends are over 18 years old.

Not only the basketball players but also the coach was very nervous.

八、若主語的復數名詞表示的是”一段時間”, “一筆錢”, “一段距離”, “一個數量”, “一個面積”的時候用單數謂語動詞.

Two weeks is to enough for me to finish it.

Five thousand dollars is too much.

Ten kilometers is too long for me to run.

九、people(人民), police, cattle(牛群)等常用復數動詞. 有一些集體名詞,如果表示的是整體就用單數動詞, 如果表示的是其中的個體就用復數謂語動詞.這樣的詞常見的有family, class, audience, public, team等等.

His family are all singers.

His family is very large.

十、關系代詞在定語從句中作主語時，謂語動詞與先行詞一致。

Those who want to go please sign their names here.

十一、一些名詞只有復數形式，如clothes, scissors, trousers, shorts, scales 等， 作主語時謂語用復數形式

The scales 天平 are mine.

但是成雙的東西前面有a pair of 要用單數。

This pair of scissors belongs to the tailor.

十二、如果主語由“a kind of ( a series of ) 構成， 謂語一般用單數形式。

This kind of men is dangerous.

如果是多種，謂語動詞要用復數。

There are many kinds of apples.

十三、算術式通常用單數。

十四、ics結尾的學科用單數謂語動詞。

十五、書名，劇名，報紙名，國名的復數名詞作主語，謂語動詞用單數。

The united states is a capitalist country.

“ The Arabian Nights” is a very interesting story-book.

十六、“the+形容詞（分詞）“ 指人謂語動詞用復數形式。指抽象謂語動詞

用單數。

The English speak English.

The new always beats the old.

十七、who, what, which, all,more, most some, any, none,

half, the rest, the remainder 等作主語要看各自的情況。

十八、one and a half 加復數名詞作主語謂語動詞用單數。

One and a half bananas is left on the table.