Singular and Plural Nouns worksheet - Free Printable

The task is to write the plural form of the nouns provided in the image. Below is the solution with explanations for each noun:

Singular to Plural Conversion Rules:

1. Regular Nouns: Most nouns form their plural by adding -s (e.g., book → books).
2. Nouns Ending in -s, -sh, -ch, -x: Add -es (e.g., knife → knives).
3. Nouns Ending in -y: If the noun ends in a consonant + -y, change -y to -ies (e.g., crayon → crayons). If it ends in a vowel + -y, just add -s (e.g., toy → toys).
4. Irregular Nouns: Some nouns have irregular plural forms (e.g., tooth → teeth, person → people).
5. Nouns Ending in -o: Some nouns ending in -o add -es (e.g., potato → potatoes), while others add -s (e.g., piano → pianos). There are no strict rules here, so memorization is key.
6. Compound Nouns: Form the plural of the main word (e.g., backpack → backpacks).

Solution:

#### Left Column:
- book → books
- person → people
- flower → flowers
- tooth → teeth
- rabbit → rabbits
- potato → potatoes
- woman → women
- tree → trees
- egg → eggs
- chair → chairs
- cherry → cherries
- car → cars

#### Right Column:
- knife → knives
- crayon → crayons
- sharpener → sharpeners
- backpack → backpacks
- laptop → laptops
- ruler → rulers
- folder → folders
- box → boxes
- eraser → erasers
- student → students
- pencil → pencils
- punch → punches

Final Answer:

```
book → books
person → people
flower → flowers
tooth → teeth
rabbit → rabbits
potato → potatoes
woman → women
tree → trees
egg → eggs
chair → chairs
cherry → cherries
car → cars

knife → knives
crayon → crayons
sharpener → sharpeners
backpack → backpacks
laptop → laptops
ruler → rulers
folder → folders
box → boxes
eraser → erasers
student → students
pencil → pencils
punch → punches
```

This completes the task of converting singular nouns to their plural forms. Each conversion follows the appropriate grammar rule based on the structure of the noun.