Possessive 's or s' worksheet for English language learners.

Let’s solve the worksheet step by step, explaining the grammar rules for possessive ‘s or s’ as we go.

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## 🌟 PART 1: Choose the correct words.

Rule Recap:

- Singular noun + 's → e.g., *the boy’s book*
- Plural noun ending in -s + ' → e.g., *the boys’ books*
- Proper names (like Ana) + 's → e.g., *Ana’s father*

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1. Josh and Archie are brothers. The boy’s / boys’ favorite movie is Pixels.

✔ Correct: boys’
→ Why? There are two boys (Josh and Archie), so plural. Plural nouns ending in “s” take just an apostrophe: boys’

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2. Ana is American. Ana’s / Anas’ father is Spanish.

✔ Correct: Ana’s
→ Why? “Ana” is a singular proper name. We add ’s to singular nouns, even if they end in “s”: Ana’s

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3. My sister’s / sisters’ name is Patricia.

✔ Correct: sister’s
→ Why? Only one sister is being referred to (since “name” is singular). So singular possessive: sister’s

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4. Your grandparent’s / grandparents’ house is big!

✔ Correct: grandparents’
→ Why? “Grandparents” is plural (more than one). Plural nouns ending in “s” take ’ only: grandparents’

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5. This is my father’s / fathers’ desk. His books are here.

✔ Correct: father’s
→ Why? One father (singular), so father’s

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6. There are 30 students in the class. The student’s / students’ names are here.

✔ Correct: students’
→ Why? Multiple students → plural → students’

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## ✔ Part 1 Answers:
1. boys’
2. Ana’s
3. sister’s
4. grandparents’
5. father’s
6. students’

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## 🌟 PART 2: Write sentences with the correct form of *be*. Add possessive ‘s or s’ where necessary.

We must:
- Use correct possessive form (‘s or s’)
- Use correct form of be (is/are)

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1. My fathers / computer / very old
✔ Already given: My father’s computer is very old.
→ Singular “father”, so father’s. Computer is singular → is

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2. my teachers / desk / very big

✔ My teachers’ desk is very big.
→ “Teachers” is plural → teachers’
→ Desk is singular → is

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3. his two sisters / names / Emma and Polly

✔ His two sisters’ names are Emma and Polly.
→ Two sisters → plural → sisters’
→ Names is plural → are

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4. their fathers / brothers / their uncles

✔ Their fathers’ brothers are their uncles.
→ “Fathers” is plural → fathers’
→ Brothers is plural → are

*(Note: This is grammatically correct — “fathers’ brothers” = uncles)*

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5. your mothers / sisters / your aunts

✔ Your mothers’ sisters are your aunts.
→ “Mothers” is plural → mothers’
→ Sisters is plural → are

*(Note: In some contexts, you might say “mother’s sisters” if referring to one mother, but since it says “mothers”, we treat it as plural.)*

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6. my sisters / my best friends

✔ My sisters are my best friends.
→ No possessive needed here — “sisters” is subject, not showing ownership.
→ “Sisters” is plural → are

*(This is the sentence with no possessive ‘s or s’ — as instructed.)*

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## ✔ Part 2 Answers:

1. My father’s computer is very old.
2. My teachers’ desk is very big.
3. His two sisters’ names are Emma and Polly.
4. Their fathers’ brothers are their uncles.
5. Your mothers’ sisters are your aunts.
6. My sisters are my best friends.

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## 💡 Summary of Rules:

| Type | Example | Possessive Form |
|------------------|-------------------|-----------------|
| Singular noun | boy | boy’s |
| Plural noun (-s) | boys | boys’ |
| Proper name | Ana | Ana’s |
| Irregular plural | children | children’s |

Use is with singular subjects, are with plural subjects.

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✔ All done! You’ve mastered possessive forms and verb agreement. Well done!