Free Printable Plurals Worksheets for Grade 1 - Free Printable

Let’s solve this step by step.

We are given a list of singular nouns and need to sort them into groups based on how they become plural.

Here are the categories we must use:

1. Add ‘-s’
2. Add ‘-es’
3. Drop ‘y’ and add ‘-ies’
4. Drop ‘f’ or ‘fe’ and add ‘-ves’
5. Change nothing (same word for plural)
6. Drop ‘us’ and add ‘-i’
7. Change the entire word (irregular plurals)

Also, there’s a challenge: think of more examples for each group — but we’ll focus on sorting the given words first.

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Let’s go through each word one by one:

mouse → mice → *Change the entire word*
person → people → *Change the entire word*
box → boxes → *Add ‘-es’*
life → lives → *Drop ‘f’ and add ‘-ves’*
tooth → teeth → *Change the entire word*
baby → babies → *Drop ‘y’ and add ‘-ies’*
die → dice → *Change the entire word* (Note: “dice” is plural; “die” as in game piece)
cactus → cacti → *Drop ‘us’ and add ‘-i’*
boot → boots → *Add ‘-s’*
mango → mangoes (or mangos) → usually *Add ‘-es’* (we’ll go with -es since it ends in ‘o’)
domino → dominoes → *Add ‘-es’*
knife → knives → *Drop ‘fe’ and add ‘-ves’*
church → churches → *Add ‘-es’*
chair → chairs → *Add ‘-s’*
sheep → sheep → *Change nothing*
fungus → fungi → *Drop ‘us’ and add ‘-i’*
tomato → tomatoes → *Add ‘-es’*
foot → feet → *Change the entire word*
daisy → daisies → *Drop ‘y’ and add ‘-ies’*
elf → elves → *Drop ‘f’ and add ‘-ves’*
garden → gardens → *Add ‘-s’*
fish → fish (usually) → *Change nothing* (though “fishes” exists for species, here we assume common usage)

Wait — let’s double-check “die”. In math/games, “die” (singular) → “dice” (plural). So yes, irregular.

Also, “mango” can be “mangos” or “mangoes” — both accepted, but since the category says “Add ‘-es’”, and it ends in ‘o’, we’ll put it under “Add ‘-es’”.

Now let’s group them:

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✔ Add ‘-s’
→ boot, chair, garden

✔ Add ‘-es’
→ box, church, mango, domino, tomato

✔ Drop ‘y’ and add ‘-ies’
→ baby, daisy

✔ Drop ‘f’ or ‘fe’ and add ‘-ves’
→ life, knife, elf

✔ Change nothing
→ sheep, fish

✔ Drop ‘us’ and add ‘-i’
→ cactus, fungus

✔ Change the entire word
→ mouse, person, tooth, die, foot

Wait — did I miss any? Let’s count original list: 22 words.

List again:

mouse, person, box, life, tooth, baby, die, cactus, boot, mango, domino, knife, church, chair, sheep, fungus, tomato, foot, daisy, elf, garden, fish → that’s 22.

In my grouping:

Add ‘-s’: 3
Add ‘-es’: 5
Drop y + ies: 2
Drop f/fe + ves: 3
Change nothing: 2
Drop us + i: 2
Change entire: 5
Total = 3+5+2+3+2+2+5 = 22 ✔

Perfect.

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Final Answer:

Add ‘-s’: boot, chair, garden
Add ‘-es’: box, church, mango, domino, tomato
Drop ‘y’ and add ‘-ies’: baby, daisy
Drop ‘f’ or ‘fe’ and add ‘-ves’: life, knife, elf
Change nothing: sheep, fish
Drop ‘us’ and add ‘-i’: cactus, fungus
Change the entire word: mouse, person, tooth, die, foot