English Grammar: Definition, Rules & Common Mistakes to Avoid

English Grammar

Virajita Sharma
Updated on Oct 6, 2025 16:38 IST

By Virajita Sharma

Grammar is the backbone and the very foundation of any language. It’s not just about the rules, but the vast framework that envelopes the complexities of any language, including its structure. Such is the case for English grammar as well. In order to master the language, one must grasp the core itself. At a languag's centre is its grammar that makes any sentence more understandable.

Mastering English grammar is essential for both experienced writer or a novice tapping into the world of English,. In the following article, you’ll learn the following topics:

  • Grammar rules
  • Exceptions in English Grammar
  • Common grammatical mistakes
  • Examples of grammar in English.
  • Best books for English grammar
Q:  

What are the basic rules of grammar?

Q:  

What are parts of speech in grammar?

Table of content
  • What is English Grammar?
  • Definition of Grammar
  • Components of English Grammar
  • English Grammar Rules
  • Sentence Structure in English Grammar
  • Sentence Pattern in English Grammar
  • Understanding Clauses in English Grammar
  • Grammar in Spoken and Written English
  • Best Tips to Master English Grammar
  • Best Books to Prepare for English Grammar
  • Practice Questions for English Grammar with Answers
  • Related English Grammar Topics for Preparation
  • Frequently Asked Question (FAQs) on English Grammar
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What is English Grammar?

Grammar is a set of rules that support the structure and composition of the language. Imagine it as bricks that build a huge building, it is necessary that each brick is placed right to make the building stronger. Using English grammar can help one convey the message in a more comprehensible and meaningful way. Grammar confies rules which help sentences not sound unclear or hard to understand

Parts of Speech are building blocks of English grammar where each part of speech plays a significant role in structuring any sentence in a way that sounds sensible. Hence, mastering parts of speech can be a breakthrough in mastering grammar in English.

Also Read:

What is Future Tense?

What are Idioms in English

What are Tenses in Grammar?

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Definition of Grammar

As per the Oxford dictionary, grammar is defined as 'the rules in a language for changing the form of words and joining them into sentences.'

In Cambridge dictionary grammar is 'the study or use of the rules about how words change their form and combine with other words to express meaning.'

Word origin: Late Middle English: from Old French gramaire, via Latin from Greek grammatikē (tekhnē) ‘(art) of letters’, from gramma, grammat- ‘letter of the alphabet, thing written’.

Pronunciation: gra-muh

English Grammar

 

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Components of English Grammar

Parts of Speech is at the centre of English grammar. There are eight parts of speech in English and you must know parts of speech and how to use them to help in categorising words based on their function within a sentence.

Each part of speech has a role to play to improve the sentence structure. Let us have a look at parts of speech in English grammar, with their general definition and examples for better understanding:

Part of Speech

Definition

Example

Nouns

Defines the name of a person, place, animal, idea, or thing

Janice, you’ve been awfully quiet these days.

Pronouns

Words used in place of a noun

Joan was sipping her tea in the garden. She thought it was too sweet.

Verbs

Words expressing an action, state of being, possession, condition or occurrences

He ate the ice cream all by himself.

Adjectives

Words defining Noun and Pronoun

Mirae looked beautiful in the blue dress.

Adverbs

Words which describe/ modify adjectives/verbs/ other adverbs/ clauses/ prepositions

My friend and I often have sushi at a nearby restaurant.

Prepositions

Words linking different parts of a sentence

I was waiting for the cab to arrive when I saw my friend.

Conjunctions

Words linking phrases/ clauses/ words

My mom was planning to go shopping regardless of the downpour outside.

Interjections

Words used to convey strong emotions or reactions to showcase surprise/ joy/ astonishment

Wow! The movie left me awestruck with its cinematography.

Also Read:

How to use Gerunds in a sentence?

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English Grammar Rules

Are you someone who often looks at a sentence while thinking, “This sounds fine, it should be grammatically correct”, instead of checking whether the sentence is in fact grammatically correct?

If yes, then you can check out the following points to understand English grammar rules. By using the correct rule, you may realise that grammar can be quite easy. Learning this can also help you with questions on English grammar rules for competitive exams.

Subject - Verb Agreement

You must use a singular verb with a singular subject. Likewise, a plural subject needs a plural verb. See the example below to understand this better:

Example:

  • Correct: Sunjae swims
  • Incorrect: Sunjae swim

Also Read: Preparation Tips to Master Subject Verb Agreement

Usage of Article: A/An, The

It is essential to use articles wherever required. “A” needs to be used as a prefix for consonant sounds, “an” before vowel sounds, and “the” while referring to something specific.

Example:

  • I met a man at the theatre yesterday.
  • Rhea had an apple before leaving.
  • The sun sets in the west.

Also ReadArticles in English grammar

Using the Correct Pronouns

One must not mix up pronouns. They must match the number/ gender of the noun in place of which the pronoun is used.

Example:

  • Sarah is waiting and She is set on carrying her luggage all by herself.
  • The kids were playing when they broke the window.

Using Tenses Correctly

While making a sentence, ensure to match the tense with the timeline of the action being talked about.

Examples:

  • Shaun has watched Conjuring fifteen times. (Rule for Present Perfect Tense - Subject + has + V3 + Object).
  • They have been working tirelessly on this project (Rule for Perfection Continuous Tense –Subject + has been + V1 + object)
  • My friend bought a nice dress for herself after watching. (Subject + V2 + Object)

Also Read: Types of Tenses in English Grammar:

Simple Present Tense

Simple Past Tense

Past Perfect Tense

Adjectives v/s Adverbs

Use adjectives for nouns and adverbs for verbs/ adjectives or other adverbs. See the examples below to understand this:

Example:

  • Harry’s a fast (adjective) swimmer.
  • The plant is growing rapidly. (adverb)

Prepositions are a Game Changer

Using prepositions in a sentence can reflect time, place, and direction.

Example:

  • Don’t worry, my friend, we’ll meet at the port.
  • The dog is hiding under the table.
  • He came to the bus stop in the heavy rain.

Capitalisation in English Grammar

Sentences might look all over the place and difficult to understand if the words aren’t capitalised in the right way. Some key points where it is essential that one capitalises correctly are as follows:

  • Proper Nouns, such as names, places, brands
  • Days, Months, and Holidays
  • The first letter of the first word of a sentence needs to be capitalized in English

Punctuation Rules

 Punctuation in English grammar is essential for sentence structure. Check out the points below to know about the common punctuation rules in English:

  • Period (.) ends a statement
  • Question mark (?) ends a question
  • Exclamation mark (!) shows excitement
  • Comma (,) separates items, clauses, and more
  • Apostrophe (‘) shows possession or contractions

Avoid Using Double Negatives at All Costs

Just as two negatives cancel each other out in Mathematics, the same applies to English grammar. Don’t use double negatives in a sentence. Let’s take a look at some example to understand this better:

Example:

  • Incorrect: I don’t need nobody.
  • Correct: I don’t need anybody.

Note: This is acceptable in certain dialects and informal speech. For example, in AAVE (African-American Vernacular English) or Cockney English.

Example: I ain’t got no money, sweetie.

Standard English: I don’t have any money, sweetie.

Pro Tip: You can replace double negatives with positive or neutral words, such as any, ever, or anything.

Sentence Structure in English

 

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Sentence Structure in English Grammar

Sentence structure is used to arrange words/ phrases/ clauses, etc., in the correct order based on English grammar rules. A sentence is considered complete only when it has a Subject, a verb, and a thought that makes sense on its own. The main components of an English sentence are:

Subject: Person/ Place/ Thing/ Idea that is either doing or being something

E.g: 1: The boy is eating noodles.

E.g: 2: Taylor threw the basketball with full force.

Verb: The action or state of being

E.g: 1: The boy is eating noodles.

E.g: 2: Taylor threw the basketball with full force.

Object: Receives the action of the verb

E.g: 1: The boy is eating noodles.

E.g: 2: Taylor threw the basketball with full force.

A simple sentence can carry multiple components which in turn make the sentence coherent.

 

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Sentence Pattern in English Grammar

A sentence has basic components, such as Subject, Object, Complement, Verb, etc. Check out the following image to learn about some common sentence pattern in English Grammar along with examples:

Types of Sentence Structure in English

From the image above, you may have gotten a general idea about the formation of a sentence. English sentences are often categorised by the complexity. The complexity is based on number and type of clauses. To understand it better, let’s have a look at the following points:

  • Simple Sentence

Simple sentences in English contain one independent clause and express a single complete idea.

Example: I hate milk.

  • Compound Sentence

Compound sentences contain two or more independent clauses joined by a coordinating conjunction, such as for, yet, so, and, but, etc.

Example: I love reading books, but I also enjoy watching movies.

  • Complex Sentence

Complex sentences in English grammar are when one independent clause is joined with at least one dependent clause. One must note that a dependent clause can’t stand alone.

Example:  Although I was hungry, I skipped my meal to enjoy the sunset.

  • Compound-Complex Sentences

In English, compound-complex sentences are used when at least two independent clauses and one dependent clause are used.

Example: Although I was running late, I still went for a walk around the park and did some yoga.

Check out the following image to get a better idea about commonly used sentence pattern in English:

Sentence patter in English

 

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Understanding Clauses in English Grammar

Clauses in English grammar are words that contain a subject and a verb. Check out the following points to learn about the types of clauses in English:

  • Independent Clause (aka Main Clause): Expresses a complete thought and can stand alone as a sentence.

Example: I enjoy star-gazing. (Subject- I; Verb- enjoy)

  • Dependent Clause (Subordinate Clause): Neither expresses a complete thought nor can it stand alone as a sentence. It requires an independent clause to make sense.

Example: As I enjoy reading (The sentence is incomplete and leaves the listener/reader with questions, rather than getting the complete picture)

Types of Dependent Clauses in English Grammar

Check out the table below to learn all about dependent clauses in English grammar:

Dependent Clause

Words

Example

Adjective Clauses

Usually begins with who, whom, whose, which, that

The girl who made the pizza is from my hometown

Adverb Clauses

Modifies verbs/ adverbs/ adjectives with time, cause, condition, contrast

She looked to her side as someone called her name

Noun Clauses

Act as a subject, object, or complement using that, what, who, whether, how, why

That was the last time she called me before leaving.

Tips to Identify Clauses

If you’re someone who finds it difficult to identify clauses in a sentence, then here are a few tips to might be of help in identifying clauses:

Tip 1: Look for a sentence and a verb in a sentence.

Tip 2: Check whether it can stand alone in a sentence and still make sense. If the answer is yes, then it is an independent clause. If the answer is no, then it is a dependent clause.

Tip 3: Ensure to see that a it starts with a subordinating word, such as if, when, that, etc.

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Grammar in Spoken and Written English

English grammar, though rooted in the same rules, sometimes takes on different paths when it comes to written and spoken English. While the written English is much more concise and deliberate with usually less allowance of discarding grammar rules, spoken English is often different. One can be more at ease while speaking, and it’d be accepted if they don’t follow the grammar rules down to a tee.

In written English, sentences must be complete, the punctuation should be correct, and the thought behind the sentence must be conveyed in a clear and concise way.

In contrast, spoken English is much more languid with a blend of informality and pauses sprinkled every now and then. Especially, day-to-day English is worlds apart from the grammatically correct English. Over time, with the help of globalisation and cultures mingling together, it is only a matter of time before the language starts deviating from the strict grammar rules. At least in spoken English,

Let’s understand this better with the help of a few examples:

Example 1:

  • Written English: Ryan chose to skip the outing as he was feeling unwell since yesterday.
  • Spoken English: Ryan bailed on the outing, said he wasn’t feeling great since yesterday.

Example 2:

  • Written English: I apologise as I couldn’t come to your party yesterday due to a prior appointment scheduled for the same time.
  • Spoken English: Sorry mate, couldn’t make it to your party yesterday. Had something else at the same time.

Example 3:

  • Written English: I’m going to the library before heading out for the class.
  • Spoken English: Gonna grab a quick bite before going to the class.

The sentence used in the example for written English is crisp, to the point and has a formal tone. Whereas, the example for spoken English has a much more informal tone with the usage of the commonly used idioms between friends.

One must note that it is perfectly normal and acceptable to talk with the correct grammar. However, usage of filler words, such as “like”, “you know” or saying “and I was like” while talking is also equally normal in an informal setting.

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Best Tips to Master English Grammar

The essence of a language lies in its grammar. Hence, mastering English requires one to get a proper understanding of the grammar. If grammar seems daunting to you, fret not, as these tips can elevate your language skills. Mastering English grammar is also essential for acing any entrance exam. Let’s go through some tips to master English grammar in a quick and easy way so that you don’t have to wing it, thinking “if it sounds right, it’s probably correct”.

Tip #1: Understand the Basics

Improving your English or broadening your vocabulary takes time. One can’t achieve an exponential growth overnight. It takes one step at a time, starting from the basics. Learn parts of speech, sentence structure, and rules to master your basics.

Tip #2: Make a Habit of Reading Frequently

One of the easiest ways to learn something is by reading frequently. You can pick any book, article, magazine, or newspaper of your choice to start this practice. Pay attention to sentence structure, common phrases and how they’re phrased, word choice, punctuation rules, and more. Eventually, you’ll get the hang of it, and grammar will come easily to you.

Tip #3: Play Quizzes to Master Grammar

Thousands, if not millions, of websites offer free grammar quizzes online. You can simply search for English Grammar quizzes on any search engine and answer the quizzes. Alternatively, you can also play such games with your friends to have fun in addition to improving your grammar. You can also purchase grammar workbooks offline.

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Best Books to Prepare for English Grammar

Books are your best friends when it comes to learn something. Reading books can be extremely helpful in learning English grammar. Find below some popular books to prepare for English grammar:

Book

Author/ Publication

Understanding and Using English Grammar

Betty Schrampfer Azar

Practical English Usage

Michael Swan

Fundamentals of English Grammar

Betty Schrampfer Azar

Oxford Guide to English Grammar

John Eastwood

The Cambridge Grammar of the English Language

Rodney Huddleston

Basic English Grammar: With Answer Key

Betty Schrampfer Azar

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Practice Questions for English Grammar with Answers

Practice makes a man perfect. Let’s test your grammar skills by answering the questions below:

Exercise 1: Subject-Verb Agreement

Q 1: The boys __ playing in the rain outside.

  1. Is
  2. Are
  3. Was

Q 2: None of the candidates appearing for the exam __ brought their pens.

  1. will
  2. have
  3. has

Exercise 2: Tenses

Fill in the blanks with the correct form of the verb.

Q 3: By the time you came, I __ (complete) my chores.

Q 4: Sarah __ (goes) to the library yesterday.

Exercise 3: Articles

Q 5: I ate _ ice cream.

Q 6: __ ocean is vast.

Exercise 4: Punctuation

Q 7: I like to read fiction but I also like to read non-fiction __

Q 8: I have a match tomorrow__ Can you come over?

Exercise 5: Sentence Structure

Q 9: Rhea don’t like comedy shows.

Q 10: Marie always do her work at the last moment.

Answers to the Questions Above

Find below the answers for the questions asked below and see how many answers you got right.

A 1: b) are

A 2: b) have

A 3: completed

A 4: went

A 5: an

A 6: The

A 7: I like to read fiction, but I also like to read non-fiction.  

A 8: I have a match tomorrow. Can you come over?

A 9: Rhea doesn’t like comedy shows.

A10: Marie always does her work at the last moment.

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Related English Grammar Topics for Preparation

You can check the complete English Grammar study material required for a thorough understanding of the English Language. Access the study material for various grammar topics PDFs from the table below:

Grammar Topic English Study Material PDF
English Verbs Verbs in English: Types, Uses, Forms, Examples
Parts of Speech Parts of Speech in English Grammar: Types, Examples and Exercises with Solutions
English Articles Articles in English: Types, Examples, and Practice Questions with Answers
Conjunctions in English Conjunctions: Meaning, Examples, Practice Questions
Prepositions in English Prepositions: Definition, Kinds and Exercises
Letter writing in English English Letter Writing: Types, Examples, Practice Questions with Answers
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Frequently Asked Question (FAQs) on English Grammar

Frequently Asked Question (FAQs) on English Grammar

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Commonly asked questions
Q:  

What are some tips to improve English grammar?

Q:  

What are some good books for English grammar?

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