一、代詞一致
由or, either...or, neither...nor, not only...but also連線的詞，如果數和性是一致的，就用其相應的代詞；如果性和數不一致，代詞與其臨近的名詞保持一致。
【例如】
neither he nor she wants to visit her uncle.
not only my mother but also i care a lot about my father.
each, everyone, everybody, everything, no one, nobody, nothing, anyone, anybody, somebody等修飾主語或作主語時，相應的代詞用單數。
【例如】
everybody talked at the top of his voice.
everything is ready for the picnic, isn’t it?
二、動賓一致
英語語法規定，用於賓語的詞語應使用它們的賓格。能夠用做賓語的詞類中只有人稱代詞有特別的賓格形式，其他詞類如名詞原形即可用於賓格，無須變化。詞與詞之間的固定搭配屬於英語的慣用法。一些動詞與它們用於賓語的名詞之間也存在固定搭配現象。
【例如】
to acquire knowledge 獲得知識
to get a job 獲得工作
to obtain a position獲得工作(語氣較莊重)
to achieve success 獲得成功
to gain reputation 獲得聲譽
to attain one’s end 達到目的
to do sb a favor請幫忙
這類慣用法沒有太多的章法可循,只有在平時的閱讀中多看，多記。
三、集合名詞的主謂一致
集合名詞作主語時，主謂一致關係是一個較為複雜的問題。對此類問題我們可以從"數"的角度分為四類。
1)單數-複數型。凡是有複數詞尾變化形式的集合名詞都屬於此類。如：a class-classes; a family-families; a government-governments; an army-armies; a people-peoples; a group-groups; a crowd-crowds; a crew-crews等。這類集合名詞強調的是整體性，即當作一個整體或多個整體來看待。屬於這類集合名詞的單數作主語時，謂語動詞用單數；複數形式作主語時，謂語動詞用複數。
【例如】
a big crowd often gathers on the square every morning.
the government has decided to pass the bill.
there are huge crowds in the streets on sunday.
there are many english-speaking peoples in the world.
但應注意，這類集合名詞的單數形式有時表示複數概念，所以這些集合名詞的單數形式也可歸為"單復同形型"中。
2)單數型。這類集合名詞表示的是人或事物的整體，即把這類人或事物的全部包括在內，所以只有單數形式。如作主語，謂語動詞常用單數。這類名詞常見的有：humanity, mankind, proletariat等。
【例如】the proletariat is the greatest class in the history of mankind. in the fields of production and scientific experiment, mankind makes constant progress.
3)複數型。這類集合名詞在形式和內容上是相互矛盾的，就是說它們只有單數形式，但表達的都是複數概念。它強調的是集體中的個體性。這類名詞有：police, cattle, faculty, flock, machinery, vermin, personnel等。它們作主語時，謂語動詞要用複數。
【例如】the police have caught the murder.
our personnel are very highly trained.
the vermin are very dangerous.
4)單復同形型。這類集合名詞的單數形式既可表示單數也可表示複數。作主語時，用單數動詞或複數動詞均可，有時意義區別不大。
【例如】the school teaching staff are (is) excellent.
the public is (are) requested not to litter in the park.
the teaching profession claim(s) to be badly paid.
這類集合名詞常見的有：class, family, team, crew, board, herd, committee, party, jury, enemy, audience等。
根據說話人的心理意向若把這個集合名詞所代表的人或事物看作一個整體，就認為是單數，用單數動詞；若把它所代表的人或事物看作若干個個體的話，就認為其為複數，用複數動詞。
試比較：the football team is playing well.
那個足球隊打得非常漂亮。
the football team are shavings bath and are then coming back here for tea.
足球隊員們正在洗澡，然後來這裡吃茶點。
the family is a very happy one.
那個家庭是一個非常幸福的家庭。
that family are very pleased about the news of william’s success.
全家人對威廉的成功都感到很高興。
四、時態一致
1)並列謂語的時態一致。
【例如】yesterday i went shopping, bought some books and had dinner at a good restaurant.
the soldier looked at him, exchanged glances with his comrade and took out the gun.
2)主從複合句的時態一致。
a)主句為現在時、將來時、現在完成時，賓語從句謂語動詞時態按情況而定。
【例如】
i wonder what will happen tomorrow.
i wonder what happened to him yesterday.
i wonder what is happening now outside.
b)主句為過去時態，賓語從句一般用過去時態。如果賓語從句說明的是客觀真理，用一般現在時。
【例如】
he told me he made a big mistake.
he told me he would go to beijing the next day.
he told he had finished his task.
the teacher told students that the earth moves around the sun.(客觀真理)
3)定語從句和比較狀語從句時態不受主句影響。
【例如】
the university where she is studying was founded in 1950.
you now speak english better than you spoke it last year.
4)時間和條件狀語從句中，常用現在時表示將來。
【例如】
we will cancel our trip if it rains tomorrow.
i will go to visit the summer palace as soon as i arrive in beijing.