1.結構不平行例：I was able to raise my TOEFL score by studying hard and I read lots of books.當使用連詞將一系列的單詞聯接起來的時候，應當使用詞性相同或同一類型的短語。
2.不知所云例：Many companies began using computers mouth.
3.段落過長，不分段主語與動詞一致問題She are a good friend of mine that I has known for a long time.主語和動詞在數方面不一致。
4.句子別扭We heated the soup in the microwave for too long and the shape of the container changed.措辭過長或不清。換言之，句子顯得滑稽可笑。
5.不要使用縮寫在正式的寫作中不要使用縮寫形式(can't，don't，it's，we'll，they've等等)，而應當使用單詞的完整形式(cannot，do not，it is，we will，they have等等)。
6.關聯詞語重復Since I want to go to a good school, therefore I am trying to raise my test scores.不能在該句的主要主語和主要動詞前使用連詞。
7.句子不完整Many students have a hard time passing all the tests to getsintoscollege. For example, my friend in high school.句子沒有主要主語或主要動詞，因為其實它應是一個從句。這是一個非常常見的錯誤，修改的方法是將兩個句子連接起來。
8.不要使用get When I got home, I got tired, so I got a book and gotsintosbed. Get太不正式，意思也過于含糊，不適合用在正式的場合。應將get改為一個更加具體的單詞，如become, receive, find, achieve,等等。
9.書寫難以辨認信息不正確I would like to study in America because all modern technology originated there.傳的信息不正確，或者讓人聽起來覺得可能不正確(如果確實是正確的，應當解釋為什么這樣，因為讀者不認為是正確的)。上述例句中，all的意思是百分之百;我們不能絕對地說每一件新東西都是從美國誕生的。為保險起見，應當使用many或most。非英語單詞Computers are very helpful and advantageable.盡管看起來象個單詞，其實不是，至少不是個英文單詞。使用這個單詞的另一種形式。
10.介詞多余I would like to discuss about something important that you mentioned about to me during yesterday. We went to downtown yesterday to buy a watch. When I first came to the US, I did not have a lot of friends in here. In class, my classmate never mentioned about her husband.在表示這種意思時此單詞不能與介詞連用。這種情況常見于downtown，home，there，here等詞。這些詞語在英語中是副詞而非名詞，因而不能在它們前面添加介詞。
11.跑題或不相關There are many reasons to buy a car, preferably a nice car.這個意思與文章的主題無關。
12.陳詞濫調It is okay for children to fail sometimes.所表達的意思很普通大多數人都已經知道到了，因而就沒有必要再說出來。
13.標點問題I love animals. And I like to help them. Because they are helpless. So I want to become a vet.這是一個非常普遍的問題!許多學生在句子中使用了太多的句號，尤其是當他們用手寫的時候。
14.重復冗余Personally, I believe what the newspaper prints.一種意思的表述不止一次，或者某個詞語不必要。
15.單數/復數Many year ago, dinosaur roamed the Earths.單詞需要從單數變為復數，或者由復數變成單數。單數可數名詞單數可數名詞不能單獨使用，應該將其變為復數形式或者加上限定詞(a, the, my, his, her, Gary's, no, any, 1, 3, 50, most,等等)。
16.拼寫錯誤主語、動詞或賓語有問題I want to buy something for my mother that she will like it. There was a terrible accident happen yesterday.句子的基本結構有問題　缺少主語、動詞或賓語，或者這些成分重復。
17.語氣與文章不符I was kind of mad at the guy who vociferated angry words at me. I have heard many wonderful things about such cosmopolitan cities as Paris, London, Tokyo, and Hong Kong and I would love to visit these cities to check them out.語氣與文章其他部分不相符可能是過于正式或者太不正式。
18.代詞指代不明If people do not speak the same language, it has a greater chance of miscommunication. I intend to complete my studies in the United States because they have good programs there.代詞所指代的指示詞(介詞所代替的名詞)不清楚。
19.過于籠統We should use our resources on Earth because the Earth is getting worse.　句子或它所表達的意思過于籠統，不能提供多少信息。
20.動詞時態錯誤Yesterday I will go to the store because tomorrow I needed some food.動詞時態不正確檢查一下是應該用現在時、過去時、將來時還是完成時等等。
21.選詞不恰當I was late getting home because I lost my way.在這種情況下不應該使用該詞可選擇更好的詞語或者所使用的詞語與文章的總體語氣不符。
22.單詞形式不當I want to creation a great web site so that I can becoming wealth.所使用的單詞的形式不正確檢查一下應該使用該詞的名詞、形容詞或副詞形式的哪一種。
23.用詞錯誤Even I don't speak Spanish, I was able to find a bathroom in the department store. I gained a lot of pounds during vacation.用詞錯誤或在此種情況下該詞不是最佳用詞。