10 Common Mistakes In Grammar | (The Best Guide To Avoid those)
Table of Contents
Introduction to Common Mistakes In Grammar
When you want to write something in English like an article, letter, CV, essay, resume, etc, you might face some challenges to make it error-free.
We usually get many errors because the main reason is that we don’t focus/practice grammar rules well.
So to avoid those, we are going to mention 10 most common mistakes that most people do in grammar.
10 Most Common Mistakes In Grammar
Here, is the list of errors that you need to focus.
- Sentence Structure
- Subject-Verb-Agreement
- Singular and plural forms
- Usage of Preposition
- Misuse of Articles
- Tenses
- Active and Passive Voice
- Question Tags
- Missing Commas
- Capitalisation Errors
Sentence Structures
Sentence Structure is one of the basic concepts in English Grammar. We all know that a sentence has two parts i.e, Subject and Verb.
With the help of these two, a complete sentence can be formed with a proper message. But most of the people make mistakes by,
- missing a subject or a verb
- giving incomplete meaning/message
- dividing the sentences incorrectly
Sentence fragmentation is important to understand when the sentence should be divided (fragmented).
If an idea (or message) is expressed in one sentence, then the other related idea should be in another sentence.
In other words, fragmentation is done when other related idea has been expressed in the sentences.
For example,
- Incorrect: He is not coming to the Picnic. Because he has a lot of work. (X)
- Correct: He is not coming to the Picnic because he has a lot of work. (_/)
Subject-Verb-Agreement
This topic is related to the previous one. The Sentence Structure explains the importance of the subject and verb in the sentences.
Whereas the Subject-Verb-Agreement explains the relationship between the Subject and Verb in the sentences.
The verb changes according to the Subject.
For example,
- Sita is singing a song.
- John and Micheal are singing a song.
- That house looks expensive.
- Those houses look expensive.
We can observe that most of them don’t write verbs according to the Subject.
Singular and plural forms
The Subject can be expressed in two forms. That is Singular and Plural forms.
We all know that the plural subjects are represented by adding “-s”.
For example,
- Singular: There is one apple in the basket.
- Plural: There are two apples in the basket.
We can also observe that the verbs are also changing according to the form of Subject.
So, what’s wrong here? Usually, many of them don’t concentrate on verbs based on Singular and Plural forms.
Usage of Preposition
The preposition is one of the concepts of Parts of Speech. These words usually link other words in the sentences.
There are many prepositions like in, on, under, from, over, for, to, until, etc. Because of these, people often make mistakes by using wrong Prepositions.
For example,
- Incorrect: We should pay our exam fee in time. (X)
- Correct: We should pay our exam fee on time. (_/)
- Incorrect: I often go to college in bus. (X)
- Correct: I often go to college by bus. (_/)
- Incorrect: I have been waiting from two hours. (X)
- Correct: I have been waiting for two hours. (_/)
It is also important that the prepositions are not used at the end of the sentences.
For example,
- I don’t have anything to start with.
- I wish he would cheer up.
For the question type sentences, you need to use Preposition at the beginning.
- Incorrect: What reason did he go there for? (X)
- Correct: For what reason did he go there? (_/)
Misuse of Articles
We all know that the articles are used to used to modify the noun.
We also know that there are two types of articles in English Grammar.
- Definite Articles (the)
- Indefinite Articles (a, an)
These types have their own usage and purpose, but everyone gets confusion on which articles should be used.
Below are some common mistakes of Articles.
- Incorrect: Ganga river is the largest in India. (X)
- Correct: The Ganga river is the largest in India. (_/)
- Incorrect: Thar desert is situated in India. (X)
- Correct: The Thar desert is situated in India. (_/)
If you want to learn about articles in details, you can click here to learn or click the below button.
Tenses
The Tenses are used to describe the situations based on the timings (Past, Present and Future).
There are 12 different tenses which make people often confused while using in the sentence. Sometimes, most of them use the tenses unnecessarily (which is shown in the below examples).
Let us consider with the below examples.
- Incorrect: I have seen her yesterday. (X)
- Correct: I had seen her last yesterday. (_/)
- Incorrect: I had finished that assignment last week. (X)
- Correct: I finished that assignment last week. (_/)
Make sure you practise these 12 Tenses well in order to avoid any confusion.
Active and Passive Voice
Active Voice is a form of sentence in which the subject is represented following with the action (verb). The form is Subject-Verb-Object (SVO).
Whereas, Passive voice first displays the verb (action) and then shows the subject who performed that (Object-Verb-Subject).
Both gives the same meaning if used. But there is a difference in the usage.
Active Voice gives a direct and clear tone, whereas Passive Voice has complicated and indirect tone.
For example,
- Active Voice: The people vote for the leader.
- Passive Voice: The leader is voted by the people.
- Active Voice: The boss appreciated an employee.
- Passive Voice: An employee was appreciated by the boss.
It is recommended to use Active than the Passive voice because it sounds formal and good and the words are organised well in the sentences.
Question Tags
Question tags are used for questioning (or interrogating) type of sentences. But while framing the sentence, most people make the mistake of using wrong tags like,
- Incorrect: He is coming to college. Isn’t it? (X)
- Correct: He is coming to college. Isn’t he? (_/)
- Incorrect: You are a kind person. Isn’t it? (X)
- Correct: You are a kind person. Aren’t you? (_/)
Missing Commas
Commas are used to give a small pause while reading the sentences. It is like a punctuation mark that fragments (separate) words, clauses, or ideas within the sentences.
Most of the people make mistake by not using comma inbetween the Compound sentences.
Compound sentences are those sentences which have two related ideas connected by the conjunction like and, but, because, etc.
So, we need to remember that commas should be used for Compound sentences.
For example,
- Incorrect: Rahul went for shopping and Raju went with him. (X)
- Correct: Rahul went for shopping, and Raju went with him. (_/)
- Incorrect: John read an article but he didn’t enjoy it. (X)
- Correct: John read an article, but he didn’t enjoy it. (_/)
Capitalisation Errors
Capitalisation is one of the most basic and important concept in English grammar.
Basically, we all know that the first letter in the word in every sentence should be capitalised. But most of them don’t know the other usages.
Because Capitalization is not only meant for first letter, but also used for nouns (especially Proper Noun).
For example,
- Incorrect: Sudheer is an intelligent person he knows how to handle the situations. (X)
- Correct: Sudheer is an intelligent person. He knows how to handle the situations. (_/)
- Incorrect: I love to play mobile games especially temple run. (X)
- Correct: I love to play mobile games especially Temple Run. (_/)
Here, we can observe that the Pronoun Noun (Temple Run) has been capitalized and the common noun is usually lowercased in the above example.
Quiz Time! (Test your knowledge here)
#1. Sentence fragmentation means _______________.
#2. "i like to eat pizza from dominos". Correct the given wrong sentence.
Answer: I like to eat pizza from Dominos.
#3. "He like to teach English". Rewrite the sentence with correct agreement..
Answer: He likes to teach English.
#4. "He likes to dance. But he gets nervous infront of everyone". Rewrite the compound sentence with the correct one.
Answer: He likes to dance, but he gets nervous in front of everyone.
#5. "The company is owned by the founder". Convert the given Passive voice sentence to Active voice.
Answer: The founder owns the company.
#6. "It is better to follow the traffic rules. ______?" Choose the correct question tag from the below options.
Answer: It is better to follow the traffic rules. Isn’t it?
#7. Which article is used for the sentence, "Milk is rich in Vitamin D"?
Answer: No article can be used for the given sentence.
#8. "He ___ afraid of dogs". Fill in the blank with an appropriate verb.
Answer: He is afraid of dogs.
#9. I ___ watched this movie before. Use an appropriate tense word.
Answer: I had watched this movie before.
#10. I am studying ___ St.Jhones High School. Choose an appropriate preposition for the given sentence.
Answer: I am studying at St.Jhones High School.
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Conclusion: Common Mistakes In Grammar

So, here is the overview of the topic which we have discussed before.
- Sentences structures are important to learn. Make sure you use the subject and verb in the sentence.
- The verbs change according to the subject in the sentences.
- The verbs also change according to Singular and Plural forms.
- Prepositions are often confusing to use in the sentences. You can avoid any mistakes by practising well.
- Understand the concept of Articles (we should we use and when we shouldn’t).
- Tenses are used based on the timings of the event. Read and practice 12 different tenses well.
- It is recommended to use Active Voice than Passive while writing an article, letter, etc.
- Question tags are used for questioning. Mainly focus on concept and usage.
- Commas are often misplaced or overused in the sentences.
- We need to capitalise the starting letter of the word and also Proper Nouns.
If you are interested to learn more, then you can refer wikipedia from here.
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