English grammar rules are the building blocks of the English language. They help us communicate clearly and correctly. Whether you're preparing for BCS, IELTS, Bank Jobs, or University Admission, understanding these 100 essential rules will give you a strong foundation.
📖 How to Use This Guide:
Read each rule carefully – Understand the concept
Study the example – See how the rule is applied
Click the link – Go to the detailed article for more explanation
Practice – Use the tools and quizzes
Let's start with the most fundamental topic — Parts of Speech.
📚 Rules 1-20: Parts of Speech
1
Every sentence must have a verb.
✅ She is a teacher. • He goes to school. • They eat rice.
Don't use "because" and "so" together. Don't use "although" and "but" together.
❌ Because it was raining, so I stayed home. ✅ Because it was raining, I stayed home. ❌ Although he is rich, but he is humble. ✅ Although he is rich, he is humble.
One of = Singular – One of the students is (not are)
A number = Plural – A number of students are (not is)
The number = Singular – The number of students is (not are)
Since = point, For = duration – Since 2015, For three hours
❓ Frequently Asked Questions
What are the most important English grammar rules?
The most important rules include: Subject-Verb Agreement (Rule 1-15), Tense Rules (Rule 20-35), Article Rules (Rule 45-55), Preposition Rules (Rule 60-70), and Sentence Structure Rules (Rule 80-90). These form the foundation of English grammar.
How many grammar rules are there in English?
There are hundreds of grammar rules in English, but this guide covers the 100 most essential rules that every learner should know. These rules cover Parts of Speech, Sentence Structure, Tenses, Subject-Verb Agreement, Articles, Prepositions, and more.
What is the first grammar rule to learn?
The first rule is Rule 1: Every sentence must have a verb. Without a verb, a sentence is incomplete. This is the most fundamental rule of English grammar.
What is the most common grammar rule tested in BCS?
Subject-Verb Agreement (Rules 36-50) is the most frequently tested topic in BCS and Bank Job exams. Also, Tense Rules (51-65), Articles (66-75), and Prepositions (76-85) are very common.
What is the difference between 'a' and 'an'?
Use 'a' before words that start with a consonant sound (a book, a university). Use 'an' before words that start with a vowel sound (an apple, an hour). The rule depends on sound, not spelling.
What is Subject-Verb Agreement?
Subject-Verb Agreement means that the verb must match the subject in number (singular or plural) and person. If the subject is singular, the verb must be singular; if plural, the verb must be plural.
What is the rule for 'everyone' and 'someone'?
'Everyone', 'someone', 'anyone', 'nobody', and 'each' are singular indefinite pronouns. They always take a singular verb. For example: 'Everyone is present' (not 'are').
What is the difference between 'since' and 'for'?
'Since' is used with a specific point in time (since 2015, since Monday). 'For' is used with a duration of time (for three hours, for five years).
What is the rule for 'Neither...nor' and 'Either...or'?
With 'Neither...nor' and 'Either...or', the verb agrees with the subject that is closest to the verb. For example: 'Neither the teacher nor the students are present' (students is plural, so 'are').
What is the difference between 'few' and 'a few'?
'Few' means 'almost none' and has a negative meaning (Few people came = almost nobody came). 'A few' means 'some' and has a positive meaning (A few people came = some people came).
What is the difference between 'little' and 'a little'?
'Little' means 'almost nothing' and has a negative meaning (There is little water = almost no water). 'A little' means 'some' and has a positive meaning (There is a little water = some water is available).
What is the rule for 'who' and 'whom'?
'Who' is used as a subject pronoun (like 'he'), and 'whom' is used as an object pronoun (like 'him'). Use 'who' when the pronoun is the subject of the verb, and 'whom' when it is the object of the verb or preposition.
What is the rule for 'I' and 'me'?
Use 'I' as the subject of a verb (I am a student). Use 'me' as the object of a verb or preposition (She gave the book to me).
What is the best way to memorize grammar rules?
The best way is to practice regularly. Read each rule, understand the example, and then create your own sentences. Use the Ovidhan app's grammar tools and quizzes for daily practice.
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✅ Conclusion
These 100 essential English grammar rules are the foundation of the English language. Whether you're preparing for BCS, IELTS, Bank Jobs, or just learning English, mastering these rules will significantly improve your grammar skills.
🎯 Your Action Plan:
Review 10 rules daily – Complete all 100 rules in 10 days
Practice with examples – Create your own sentences
Take the quizzes – Test your knowledge
Bookmark this page – Quick reference anytime
Download the Ovidhan app – Practice on the go
💡 Remember:
Grammar is not about memorization — it's about understanding and practice. The more you read, write, and speak English, the more natural these rules will become. You CAN master English grammar!
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