Plural Nouns worksheet for students to practice forming plurals by sorting nouns into correct categories.

Let’s go step by step to sort each noun into the correct plural category.

We have 5 categories:
1. add s → just add “s” at the end (most common)
2. add es → for words ending in -s, -ss, -sh, -ch, -x, -z, or sometimes -o
3. change f to v add es → for some words ending in “f” or “fe”
4. change y to i add es → for words ending in consonant + y
5. irregular → doesn’t follow any rule; must be memorized

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List of nouns given:

party, octopus, torso, zoo, antenna
veto, knife, penny, studio, pencil
wolf, glass, shelf, zero, bunny, plus
wife, avocado, moose, atrocity, icon
company, thesis, life, church, paragraph
man, mouth, potato

Total: 26 nouns

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Let’s go one by one and assign them:

1. party → ends in consonant + y → change y to i, add es → parties → Category: *change y to i add es*

2. octopus → irregular? Actually, can be “octopuses” (regular) or “octopi” (Latin). But in school worksheets, often treated as regular → octopuses → *add s*

*(Note: Some might say irregular, but since “octopuses” is accepted and follows “add s”, we’ll put it there unless specified otherwise. Let’s check standard curriculum — usually “octopus” goes under “add s” for simplicity.)*

Wait — actually, let’s double-check common teaching standards. In many elementary/middle school worksheets, “octopus” is placed under “add s” because “octopuses” is the standard English plural. We’ll go with that.

→ octopuses → *add s*

3. torso → ends in o → usually add s → torsos → *add s*

4. zoo → ends in o → add s → zoos → *add s*

5. antenna → ends in a → usually add s → antennas (or antennae, but “antennas” is more common in modern usage for non-scientific contexts) → *add s*

6. veto → ends in o → add s → vetoes → wait! Ends in o after consonant → often adds “es” → vetoes → *add es*

Actually, rule: if word ends in o preceded by a consonant, often add “es”. Veto → v-e-t-o → t is consonant → so vetoes → *add es*

7. knife → ends in fe → change f to v, add es → knives → *change f to v add es*

8. penny → ends in consonant + y → change y to i, add es → pennies → *change y to i add es*

9. studio → ends in o → vowel before o → add s → studios → *add s*

10. pencil → just add s → pencils → *add s*

11. wolf → ends in f → change f to v, add es → wolves → *change f to v add es*

12. glass → ends in ss → add es → glasses → *add es*

13. shelf → ends in f → change f to v, add es → shelves → *change f to v add es*

14. zero → ends in o → consonant before o → add es → zeroes (also “zeros” is acceptable, but worksheet likely expects “zeroes”) → *add es*

In many school worksheets, “zero” is taught as taking “es” → zeroes

15. bunny → ends in consonant + y → change y to i, add es → bunnies → *change y to i add es*

16. plus → ends in s → add es → pluses → *add es*

17. wife → ends in fe → change f to v, add es → wives → *change f to v add es*

18. avocado → ends in o → vowel before o → add s → avocados → *add s*

19. moose → same singular and plural → moose → *irregular*

20. atrocity → ends in consonant + y → change y to i, add es → atrocities → *change y to i add es*

21. icon → just add s → icons → *add s*

22. company → ends in consonant + y → change y to i, add es → companies → *change y to i add es*

23. thesis → Greek origin → becomes theses → *irregular*

24. life → ends in fe → change f to v, add es → lives → *change f to v add es*

25. church → ends in ch → add es → churches → *add es*

26. paragraph → just add s → paragraphs → *add s*

27. man → becomes men → *irregular*

28. mouth → just add s → mouths → *add s*

29. potato → ends in o → consonant before o → add es → potatoes → *add es*

Wait — I think I miscounted. Let me list all again carefully.

Original list from image (let me count):

Row 1: party, octopus, torso, zoo, antenna → 5
Row 2: veto, knife, penny, studio, pencil → 5
Row 3: wolf, glass, shelf, zero, bunny, plus → 6
Row 4: wife, avocado, moose, atrocity, icon → 5
Row 5: company, thesis, life, church, paragraph → 5
Row 6: man, mouth, potato → 3
Total: 5+5+6+5+5+3 = 29? Wait no — let me recount based on actual image layout.

Looking back at user input text:

"party octopus torso zoo antenna
veto knife penny studio pencil
wolf glass shelf zero bunny plus
wife avocado moose atrocity icon
company thesis life church paragraph
man mouth potato"

That’s 6 rows:

Row 1: 5
Row 2: 5
Row 3: 6
Row 4: 5
Row 5: 5
Row 6: 3
Total: 29? But earlier I thought 26 — mistake.

Wait — let's list them explicitly:

1. party
2. octopus
3. torso
4. zoo
5. antenna
6. veto
7. knife
8. penny
9. studio
10. pencil
11. wolf
12. glass
13. shelf
14. zero
15. bunny
16. plus
17. wife
18. avocado
19. moose
20. atrocity
21. icon
22. company
23. thesis
24. life
25. church
26. paragraph
27. man
28. mouth
29. potato

Yes, 29 nouns.

I missed “plus” and “paragraph” and “mouth” etc. in initial grouping? No, I had them.

Earlier I did up to 26, then added 27-29. So total 29.

Now let’s reassign all 29 correctly.

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Final assignment:

Category: add s

- octopus → octopuses
- torso → torsos
- zoo → zoos
- antenna → antennas
- studio → studios
- pencil → pencils
- avocado → avocados
- icon → icons
- paragraph → paragraphs
- mouth → mouths

That’s 10

Wait — what about “plus”? Ends in s → should be “pluses” → add es → not here.

“thesis” → irregular

“man” → irregular

“moose” → irregular

“life” → lives → change f to v add es

“knife” → knives → change f to v add es

“shelf” → shelves → change f to v add es

“wife” → wives → change f to v add es

So “add s” group:

1. octopus
2. torso
3. zoo
4. antenna
5. studio
6. pencil
7. avocado
8. icon
9. paragraph
10. mouth

Is that all? What about “plus”? No — ends in s → add es.

What about “zero”? Add es.

“potato”? Add es.

“veto”? Add es.

“glass”? Add es.

“church”? Add es.

“bunny”? Change y to i add es.

“penny”? Same.

“party”? Same.

“atrocity”? Same.

“company”? Same.

“wolf”? Change f to v add es.

“knife”? Same.

“shelf”? Same.

“wife”? Same.

“life”? Same.

“moose”? Irregular.

“thesis”? Irregular.

“man”? Irregular.

So “add s” has 10.

But let’s list all 29 with categories:

1. party → change y to i add es
2. octopus → add s
3. torso → add s
4. zoo → add s
5. antenna → add s
6. veto → add es (ends in o after consonant)
7. knife → change f to v add es
8. penny → change y to i add es
9. studio → add s
10. pencil → add s
11. wolf → change f to v add es
12. glass → add es
13. shelf → change f to v add es
14. zero → add es
15. bunny → change y to i add es
16. plus → add es (ends in s)
17. wife → change f to v add es
18. avocado → add s
19. moose → irregular
20. atrocity → change y to i add es
21. icon → add s
22. company → change y to i add es
23. thesis → irregular
24. life → change f to v add es
25. church → add es
26. paragraph → add s
27. man → irregular
28. mouth → add s
29. potato → add es

Now count per category:

add s:
octopus, torso, zoo, antenna, studio, pencil, avocado, icon, paragraph, mouth → 10

add es:
veto, glass, zero, plus, church, potato → also... wait, is that all?

veto, glass, zero, plus, church, potato → 6

But what about “studio”? Already in add s.

“antenna” — add s.

Is there more? “plus” yes.

Also, “zero” — yes.

But let’s see: words ending in s, ss, sh, ch, x, z, or o (after consonant) take es.

So:

- veto (o after consonant) → es
- glass (ss) → es
- zero (o after consonant) → es
- plus (s) → es
- church (ch) → es
- potato (o after consonant) → es

That’s 6.

But what about “bus”? Not here. “box”? Not here.

Okay.

change f to v add es:
knife, wolf, shelf, wife, life → 5

knife, wolf, shelf, wife, life → yes, 5.

change y to i add es:
party, penny, bunny, atrocity, company → 5

party, penny, bunny, atrocity, company → yes.

irregular:
moose, thesis, man → 3

moose, thesis, man → yes.

Now total: 10 + 6 + 5 + 5 + 3 = 29 → perfect.

But wait — did I miss any?

What about “octopus”? I put in add s — is that correct? Yes, “octopuses” is standard.

Some might argue “octopi” is irregular, but in most school curricula, they accept “octopuses” and classify under “add s”.

Similarly, “antenna” — “antennas” is fine.

“studio” — “studios” — add s.

All good.

Now, let’s write the final sorted lists.

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Final Answer:

add s
octopus
torso
zoo
antenna
studio
pencil
avocado
icon
paragraph
mouth

add es
veto
glass
zero
plus
church
potato

change f to v add es
knife
wolf
shelf
wife
life

change y to i add es
party
penny
bunny
atrocity
company

irregular
moose
thesis
man