English Class 3 - Singular Plural-And-One-Word-Substitution Notes
Comprehensive study notes for Class 3 - Singular Plural-And-One-Word-Substitution olympiad preparation

Singular, Plural and One Word Substitution
Welcome to the chapter on Singular, Plural and One Word Substitution for Class 3. In this chapter, you will learn how to talk about one thing (singular) and many things (plural), and how to use one word instead of a long phrase. By the end of this chapter, you will be able to change words from singular to plural and use one word substitutions to make your English better!
Introduction
Words can tell us about one thing or many things. Sometimes, we use a single word to replace a group of words. This makes our sentences short and clear.
Singular and Plural
Singular means one. Plural means more than one.
- Book (one) – Books (many)
- Child (one) – Children (many)
- Dog (one) – Dogs (many)
- Leaf (one) – Leaves (many)
How to Make Plurals
- Add -s: cat → cats, pen → pens
- Add -es: box → boxes, bus → buses
- Change the word: man → men, mouse → mice
- Change f to ves: leaf → leaves, wolf → wolves
One Word Substitution
Sometimes, we use one word instead of a long phrase. This is called one word substitution.
- A person who writes books: Author
- A place where books are kept: Library
- A doctor who treats animals: Veterinarian
- A story of a person's life written by someone else: Biography
- A person who teaches: Teacher
Fun Activity: Word Change Game
Write five singular words and change them to plural. Find three phrases and write their one word substitution.
Summary
- Singular means one, plural means many.
- We change words to make plurals.
- One word substitution makes sentences short and clear.
Practice Questions
- Write the plural of "child".
- What is one word for "a person who teaches"?
- Change "leaf" to plural.
- What is one word for "a place where books are kept"?
- Write the plural of "box".
Challenge Yourself
- Find five singular words and write their plurals.
- Write three one word substitutions for common phrases.
Did You Know?
- Some plurals do not end with "s" (like "children", "men", "teeth").
- One word substitution helps you write better and faster!
Glossary
- Singular: One person, place, animal, or thing.
- Plural: More than one person, place, animal, or thing.
- One Word Substitution: Using one word for a group of words.
Answers to Practice Questions
- Children
- Teacher
- Leaves
- Library
- Boxes
Keep practicing singular, plural, and one word substitutions to make your English strong!
Quick Navigation
- Word Power
- Synonyms and Antonyms
- Gender and Relations
- Singular-Plural and One Word Substitution
- Proverbs and Phrase Pairs
- Nouns and Pronouns
- Verbs and Adverbs
- Adjectives and Conjunctions
- Articles and Prepositions
- Tenses - Simple Present and Past
- Questions and Question Tags
- Jumbled Words and Sentence Creation
- Comprehension
- Spoken and Written Expression; Punctuation