Making Singular Nouns Plural Activity Worksheets - Twinkl - Free Printable

It looks like you've uploaded a worksheet titled "Making Singular Nouns Plural". The task is to take a list of singular nouns and make them plural, then sort them into the correct categories based on the rules for forming plurals.

Let’s go through this step by step and solve it.

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🔹 Step 1: Understand the Task

You are given a list of singular nouns:

- mouse
- knife
- person
- church
- box
- chair
- life
- sheep
- tooth
- fungus
- baby
- tomato
- pencil
- foot
- cactus
- dining
- boat
- elf
- man
- garden
- domino
- fish

Your job is to:
1. Make each noun plural.
2. Sort the plural forms into one of these categories:
- Add -s
- Add -es
- Drop 'y' and add -ies
- Drop 'f' or 'fe' and add -ves
- Change nothing (same in singular and plural)
- Drop 'us' and add -i
- Change the entire word
3. Then answer the challenge question: “Can you fill the boxes with more examples of your own?”

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🔹 Step 2: Make Each Noun Plural

Let's go through each word and determine its plural form and rule.

| Singular | Plural | Rule |
|--------|--------|------|
| mouse | mice | Change the entire word |
| knife | knives | Drop 'f' and add 'ves' |
| person | people | Change the entire word |
| church | churches | Add -es |
| box | boxes | Add -es |
| chair | chairs | Add -s |
| life | lives | Drop 'y' and add 'ies' |
| sheep | sheep | Change nothing |
| tooth | teeth | Change the entire word |
| fungus | fungi | Drop 'us' and add 'i' |
| baby | babies | Drop 'y' and add 'ies' |
| tomato | tomatoes | Add -es |
| pencil | pencils | Add -s |
| foot | feet | Change the entire word |
| cactus | cacti | Drop 'us' and add 'i' |
| dining | dinings | Add -s (rare; "dining" as a noun can be pluralized) |
| boat | boats | Add -s |
| elf | elves | Drop 'f' and add 'ves' |
| man | men | Change the entire word |
| garden | gardens | Add -s |
| domino | dominoes | Add -es |
| fish | fish / fishes | Change nothing (fish = fish), or add -es depending on context |

> Note: "Fish" is irregular — it can stay the same (fish) or become fishes (when referring to different species).

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🔹 Step 3: Categorize the Plurals

Now let's place each plural into the correct group.

#### ✔ Add -s
- chair → chairs
- pencil → pencils
- boat → boats
- garden → gardens
- dining → dinings
- fish → fish (in some contexts)

> *Note:* "Fish" is tricky. It often stays the same, so we’ll put it here.

#### ✔ Add -es
- church → churches
- box → boxes
- tomato → tomatoes
- domino → dominoes
- life → lives? Wait — no! Life → lives uses drop 'y' and add 'ies', not just -es.

Wait — let’s double-check:

- Life → lives: drop 'y', add 'ies'? No — life ends in -e, not -y. Actually, life → lives is add -s, because it ends in a vowel + consonant.

But wait — lives is formed by adding -s, but life doesn’t end in -y, so it's just add -s.

Wait — correction:

- life → lives: ends in -e, so just add -s → ✔ Add -s

So life → lives → Add -s

But baby → babies: ends in -y, so drop 'y' and add 'ies'

Let’s re-categorize carefully.

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🔍 Corrected Categorization

Let’s fix the rules:

#### 🟦 Add -s
- chair → chairs
- pencil → pencils
- boat → boats
- garden → gardens
- dining → dinings
- life → lives
- fish → fish (in general use)
- mouse → mice? No — mice is irregular.

Wait — we must apply rules correctly.

Let’s do it again with accurate grammar rules.

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🔎 Accurate Plural Rules & Application

| Word | Plural | Rule |
|------|--------|------|
| mouse | mice | Change the entire word |
| knife | knives | Drop 'f' and add 'ves' |
| person | people | Change the entire word |
| church | churches | Add -es |
| box | boxes | Add -es |
| chair | chairs | Add -s |
| life | lives | Add -s (ends in 'e') |
| sheep | sheep | Change nothing |
| tooth | teeth | Change the entire word |
| fungus | fungi | Drop 'us' and add 'i' |
| baby | babies | Drop 'y' and add 'ies' |
| tomato | tomatoes | Add -es |
| pencil | pencils | Add -s |
| foot | feet | Change the entire word |
| cactus | cacti | Drop 'us' and add 'i' |
| dining | dinings | Add -s (as in "dining rooms") |
| boat | boats | Add -s |
| elf | elves | Drop 'f' and add 'ves' |
| man | men | Change the entire word |
| garden | gardens | Add -s |
| domino | dominoes | Add -es |
| fish | fish or fishes | Change nothing (or add -es) — both accepted |

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✔ Final Categorization

#### 🟨 Add -s
- chair → chairs
- pencil → pencils
- boat → boats
- garden → gardens
- dining → dinings
- life → lives
- fish → fish (if used generally)
- box → boxes? No — box → boxes is Add -es because it ends in -x

Ah! Important: Words ending in -s, -sh, -ch, -x, -z usually take -es

So:
- box → boxes → Add -es
- church → churches → Add -es
- tomato → tomatoes → Add -es
- domino → dominoes → Add -es
- life → lives → Add -s (but ends in -e, so yes)
- pencil → pencils → Add -s (ends in -l, so just -s)
- chair → chairs → Add -s
- boat → boats → Add -s
- garden → gardens → Add -s
- dining → dinings → Add -s

Wait — dining is unusual. It's not commonly pluralized, but if needed, dinings is acceptable.

So:

#### ✔ Add -s
- chair → chairs
- pencil → pencils
- boat → boats
- garden → gardens
- dining → dinings
- life → lives
- fish → fish (if used as a mass noun)
- (Note: "fish" is sometimes "fishes" when referring to species)

But since "fish" is listed, and the plural is often fish, we'll put it under Change nothing.

Let’s now organize clearly.

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✔ Final Answer: Grouping

#### 💡 Add -s
- chair → chairs
- pencil → pencils
- boat → boats
- garden → gardens
- dining → dinings
- life → lives
- fish → fish *(commonly)*

> But note: "fish" is irregular. In many cases, fish is used for both singular and plural.

#### 💡 Add -es
- church → churches
- box → boxes
- tomato → tomatoes
- domino → dominoes

#### 💡 Drop 'y' and add 'ies'
- baby → babies
- life → lives? No — life ends in -e, not -y → ✘
- Only words ending in 'y' after consonant → e.g., baby → babies
- So only:
- baby → babies

> No others in the list end in -y after a consonant.

Wait — life does not end in -y. So only baby fits.

But fly → flies would be an example, but not here.

So only:
- baby → babies

#### 💡 Drop 'f' or 'fe' and add 'ves'
- knife → knives
- elf → elves
- wife → wives (not in list)
- life → lives? No — life doesn't end in f
- So:
- knife → knives
- elf → elves

#### 💡 Change nothing
- sheep → sheep
- fish → fish (in common usage)
- (Also: deer → deer, moose → moose, etc.)

So:
- sheep → sheep
- fish → fish

#### 💡 Drop 'us' and add 'i'
- fungus → fungi
- cactus → cacti

#### 💡 Change the entire word
- mouse → mice
- person → people
- tooth → teeth
- foot → feet
- man → men

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✔ Final Table

Now fill in the worksheet:

#### 🔹 Add -s
- chair
- pencil
- boat
- garden
- dining
- life
- fish (if using "fish" as plural)

> But fish might go under "Change nothing"

Let’s clarify:

- fish → fish (plural unchanged) → ✔ Change nothing
- life → lives → ends in -e, so Add -s → ✔ Add -s

So:

#### ✔ Add -s
- chair
- pencil
- boat
- garden
- dining
- life

#### ✔ Add -es
- church
- box
- tomato
- domino

#### ✔ Drop 'y' and add 'ies'
- baby

#### ✔ Drop 'f' or 'fe' and add 'ves'
- knife
- elf

#### ✔ Change nothing
- sheep
- fish

#### ✔ Drop 'us' and add 'i'
- fungus
- cactus

#### ✔ Change the entire word
- mouse → mice
- person → people
- tooth → teeth
- foot → feet
- man → men

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🔹 Challenge: Can you fill the boxes with more examples?

Yes! Here are some additional examples:

#### Add -s
- book → books
- car → cars

#### Add -es
- bus → buses
- brush → brushes

#### Drop 'y' and add 'ies'
- city → cities
- lady → ladies

#### Drop 'f' or 'fe' and add 'ves'
- leaf → leaves
- wolf → wolves

#### Change nothing
- salmon → salmon
- trout → trout

#### Drop 'us' and add 'i'
- virus → viruses (note: actually viruses, but fungus → fungi is correct)
- radius → radii

#### Change the entire word
- child → children
- ox → oxen

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✔ Summary of Answers

| Category | Words |
|--------|-------|
| Add -s | chair, pencil, boat, garden, dining, life |
| Add -es | church, box, tomato, domino |
| Drop 'y' and add 'ies' | baby |
| Drop 'f' or 'fe' and add 'ves' | knife, elf |
| Change nothing | sheep, fish |
| Drop 'us' and add 'i' | fungus, cactus |
| Change the entire word | mouse, person, tooth, foot, man |

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📝 Final Notes

- This worksheet teaches irregular and regular plural formation.
- Some words have multiple valid plurals (e.g., fish).
- The challenge encourages creativity and deeper understanding.

If you're filling out the worksheet, write the plural forms in the boxes under each category.

Let me know if you'd like a printable version or a filled-in PDF-style layout!