Plural Nouns in Use worksheet for practicing plural forms by changing "y" to "ies" and adding "es" to nouns.

Let’s go through each sentence one by one and figure out the correct plural form of the noun in parentheses.

We’re following the rule:
→ For most nouns, add “-s” to make them plural.
→ For nouns ending in “y” after a consonant, change “y” to “i” and add “-es”.
→ For nouns ending in “y” after a vowel, just add “-s”.
→ Some nouns have irregular plurals (like “child” → “children”, “mouse” → “mice”), but we’ll watch for those too.

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1. Jennifer’s dog had four ___ (puppy) in her litter.
→ “puppy” ends in “y” after a consonant (“p”), so change “y” to “i” and add “-es” → puppies

2. My parents want to have two different ___ (vacation) this weekend.
→ “vacation” ends in “n”, not “y”, so just add “-s” → vacations

3. Many ___ (butterfly) are attracted to the flowers in the garden.
→ “butterfly” ends in “y” after a consonant (“f”), so change “y” to “i” and add “-es” → butterflies

4. Most large ___ (city) have skyscrapers.
→ “city” ends in “y” after a consonant (“t”), so change “y” to “i” and add “-es” → cities

5. Dan ate a large bowl of ___ (berry) after dinner.
→ “berry” ends in “y” after a consonant (“r”), so change “y” to “i” and add “-es” → berries

6. There were a variety of ___ (toy) in the bag.
→ “toy” ends in “y” after a vowel (“o”), so just add “-s” → toys

7. Maria dropped three ___ (pencil) on the ground.
→ “pencil” ends in “l”, not “y”, so just add “-s” → pencils

8. The boys asked their ___ (family) on their trip.
→ “family” ends in “y” after a consonant (“l”), so change “y” to “i” and add “-es” → families

9. There were ___ (butterfly) in Anthony’s collection.
→ Again, “butterfly” → butterflies

10. Ricardo wrote ___ (summary) of his mom’s book.
→ “summary” ends in “y” after a consonant (“r”), so change “y” to “i” and add “-es” → summaries

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Final Answer:
1. puppies
2. vacations
3. butterflies
4. cities
5. berries
6. toys
7. pencils
8. families
9. butterflies
10. summaries