Educational worksheet on regular and irregular plurals with grammar rules and exercises.

Let’s go step by step to solve each part of the worksheet. We’ll focus on making sure we use the right plural forms — whether regular (adding -s or -es) or irregular (special changes).

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Section 1: Write the plural forms

We apply the rules from the top of the page:

- Rule 1: Add s → bags
- Rule 2: If ends in s, ss, sh, ch, x, o → add es → foxes
- Rule 3: Consonant + y → change y to i and add es → babies
- Rule 4: Vowel + y → just add s → toys
- Rule 5: f/fe → change to ves → knives

Also remember the irregular plurals listed on the right (man→men, child→children, etc.)

Now let’s do each one:

1. egg → eggs (Rule 1)
2. tomato → tomatoes (Rule 2 – ends in ‘o’)
3. child → children (irregular)
4. box → boxes (Rule 2 – ends in ‘x’)
5. tooth → teeth (irregular)
6. lady → ladies (Rule 3 – consonant + y)
7. book → books (Rule 1)
8. leaf → leaves (Rule 5 – ends in ‘f’)
9. foot → feet (irregular)
10. toy → toys (Rule 4 – vowel + y)
11. man → men (irregular)
12. fish → fish (irregular – same singular/plural)
13. mouse → mice (irregular)
14. sheep → sheep (irregular – same)
15. knife → knives (Rule 5 – ends in ‘fe’)
16. salmon → salmon (irregular – same)
17. house → houses (Rule 2 – ends in ‘se’, but still adds ‘es’ because it sounds like “siz”)
18. wolf → wolves (Rule 5 – ends in ‘f’)
19. horse → horses (Rule 2 – ends in ‘se’, adds ‘es’)
20. star → stars (Rule 1)
21. church → churches (Rule 2 – ends in ‘ch’)
22. bus → buses (Rule 2 – ends in ‘s’)
23. dress → dresses (Rule 2 – ends in ‘ss’)
24. day → days (Rule 4 – vowel + y)
25. potato → potatoes (Rule 2 – ends in ‘o’)
26. brush → brushes (Rule 2 – ends in ‘sh’)

✔ All checked against rules and irregular list.

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Section 2: Fill in correct plural forms in sentences

We need to pick the right plural form based on context and grammar.

1. I see three ___ (woman) there. → women (irregular)
2. There are two ___ (knife) on the table. → knives (Rule 5)
3. My ___ (foot) aches. → feet (irregular – “aches” is singular verb? Wait — actually, if it says “My foot aches”, that’s singular. But the blank is for plural? Let’s check sentence: “My ___ (foot) aches.” Hmm — “aches” is singular verb, so maybe it should be “foot”? But instruction says “plural forms”. Maybe typo? Looking at original: “My ___ (foot) aches.” Actually, this might be a trick — if you have more than one foot hurting, you’d say “My feet ache.” But here it says “aches” — which is singular. So perhaps it’s meant to be “foot”? But the task says “fill in correct plural forms”. Let’s assume it’s testing plural even if verb doesn’t match — or maybe it’s an error. In standard usage: “My feet ache.” So likely answer is feet, and verb should be “ache”. But since the sentence says “aches”, maybe they want “foot”? No — the instruction is clear: “correct plural forms”. So we write feet, and ignore verb mismatch? Or maybe it’s “My [pair of] feet aches”? Unlikely. Best to follow rule: plural of foot is feet → feet

Wait — looking again: Sentence 3: “My ___ (foot) aches.” — This is probably a mistake in the worksheet. But since we’re told to fill in plural, we put feet. Maybe the verb should be “ache”, but we don’t fix verbs — only nouns.

Actually, let’s look at sentence 14: “My ___ (tooth) are white.” — “are” is plural verb, so must be “teeth”. Similarly, sentence 3: “aches” is singular — so maybe it’s supposed to be “foot”? But the task says “plural forms”. To avoid confusion, I’ll go with what the noun requires: plural of foot is feet → feet

But let’s check all:

4. There are a lot of ___ (mouse) there. → mice (irregular)
5. I like to eat ___ (apple). → apples (Rule 1)
6. There are ten ___ (child) in our class. → children (irregular)
7. There are many ___ (tomato) in the salad. → tomatoes (Rule 2)
8. I don’t like ___ (fish). → fish (irregular – same)
9. There are many ___ (butterfly) here. → butterflies (Rule 3 – consonant + y)
10. I have a lot of new ___ (dress). → dresses (Rule 2 – ends in ‘ss’)
11. Look at this ___ (bus). It’s orange. → Wait — “this” is singular! So should be “bus”? But task says “plural forms”. Again, conflict. Sentence says “this ___ (bus)” — “this” implies singular. But instruction is to fill plural. Probably error. Should be “these buses”? But as written, we must follow instruction: plural form → buses
12. These ___ (cherry) are sweet. → cherries (Rule 3 – consonant + y)
13. There are three ___ (book) in my bag. → books (Rule 1)
14. My ___ (tooth) are white. → teeth (irregular — matches “are”)

So for #3 and #11, even though the sentence uses singular determiner/verb, we are instructed to write plural form of the noun. So we do that.

Final answers for Section 2:

1. women
2. knives
3. feet
4. mice
5. apples
6. children
7. tomatoes
8. fish
9. butterflies
10. dresses
11. buses
12. cherries
13. books
14. teeth

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Section 3: Fill in correct forms (singular or plural as needed)

Here, we must decide if the noun should be singular or plural based on the sentence.

1. Do you like ___ (banana)? → Usually, we say “bananas” when talking generally → bananas
2. How many ___ (pen) do you have? → “How many” always takes plural → pens
3. Where does this ___ (man) live? → “this” = singular → man
4. Whose ___ (book) are these? → “these” = plural → books
5. When does your ___ (bus) arrive? → “your bus” — could be singular (one bus route) → bus
6. How many ___ (star) can you see? → “how many” → plural → stars
7. Can you see two ___ (deer) there? → “two” → plural; deer is same → deer
8. Will you buy those six ___ (fish)? → “six” → plural; fish can be same → fish
9. Do you collect autumn ___ (leaf)? → “autumn leaves” is common phrase → leaves
10. How many ___ (child) are there? → “how many” → plural → children
11. Will you buy ___ (potato)? → Could be singular or plural? But no number — often used plural in general → potatoes
12. Is there a ___ (knife) on the table? → “a” = singular → knife
13. How many ___ (box) have you got? → “how many” → plural → boxes

✔ Checked each for subject-verb agreement and quantifiers.

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Section 4: Correct the mistakes

Each sentence has one error — usually wrong plural form.

1. There are three cat under the tree. → cats
2. These pencil are mine. → pencils
3. I’m afraid of dog. → Should be plural for general fear → dogs
4. I don’t like to eat salmons. → Salmon is usually same → salmon
5. Those child are from my class. → children
6. Liz put three knife on the table. → knives
7. These horse are beautiful. → horses
8. Don’t take the balls, it is dirty. → “balls” is plural, so “they are” → they are
9. You can see a lot of fishes here. → Fish is usually same → fish
10. This boxes is empty. → “This” is singular, “boxes” plural — mismatch. Should be “These boxes are” or “This box is”. Since “boxes” is plural, change “This” to “These” and “is” to “are” → These boxes are
11. Look at this babies, he is sleeping. → “babies” plural, “this” singular — should be “these”; also “he” should be “they” → Look at these babies, they are sleeping.
12. These toy are new and interesting. → toys
13. Read this texts aloud, please. → “texts” plural, “this” singular → these texts

Note: For #10, #11, #13 — multiple corrections needed to make sentence grammatical.

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Now, compiling all final answers clearly.

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Final Answer:

Section 1:
1. eggs
2. tomatoes
3. children
4. boxes
5. teeth
6. ladies
7. books
8. leaves
9. feet
10. toys
11. men
12. fish
13. mice
14. sheep
15. knives
16. salmon
17. houses
18. wolves
19. horses
20. stars
21. churches
22. buses
23. dresses
24. days
25. potatoes
26. brushes

Section 2:
1. women
2. knives
3. feet
4. mice
5. apples
6. children
7. tomatoes
8. fish
9. butterflies
10. dresses
11. buses
12. cherries
13. books
14. teeth

Section 3:
1. bananas
2. pens
3. man
4. books
5. bus
6. stars
7. deer
8. fish
9. leaves
10. children
11. potatoes
12. knife
13. boxes

Section 4:
1. cats
2. pencils
3. dogs
4. salmon
5. children
6. knives
7. horses
8. they are
9. fish
10. These boxes are
11. Look at these babies, they are sleeping.
12. toys
13. these texts