Possessive Nouns

Possessive nouns show that something belongs to a person, animal, or thing. In Primary 1, you learnt to add 's to show that something belongs to one owner (e.g., "the cat's tail"). Now you will learn how to show possession for plural nouns -- when more than one person or thing owns something.

What You'll Learn

• How to form possessives for regular plural nouns that end in -s (e.g., the boys' bags)
• How to form possessives for irregular plural nouns that do not end in -s (e.g., the children's toys)
• How to tell the difference between a plural noun and a possessive noun

When to Use

1. One owner (singular possessive): "The girl's skipping rope is in the basket." (The rope belongs to one girl.)
2. More than one owner (regular plural possessive): "The boys' bags are on the bench." (The bags belong to more than one boy.)
3. More than one owner (irregular plural possessive): "The children's artwork is on the wall." (The artwork belongs to the children.)
4. Animals in a group: "The birds' nests are high up in the trees." (The nests belong to more than one bird.)

How to Form

Step 1: Make the Noun Plural

Before adding the possessive, first form the correct plural.

Step 2: Add the Possessive

The rule depends on whether the plural noun ends in -s or not.

Quick Comparison: Singular vs Plural Possessive

Key Rules

1. Regular plural possessives -- add only an apostrophe: If the plural noun already ends in -s, just place an apostrophe after the -s. "The girls' shoes" means the shoes belong to more than one girl.

2. Irregular plural possessives -- add 's: If the plural noun does NOT end in -s (children, men, women, people, mice), add 's just like you would for a singular noun. "The women's bags" means the bags belong to the women.

3. Always make the noun plural first: Before deciding where to put the apostrophe, form the correct plural. "Child" becomes "children" (not "childs"), so the possessive is "children's" (not "childs'").

4. Do not confuse plurals with possessives: A plain plural noun (no apostrophe) just means "more than one". A possessive noun (with an apostrophe) shows ownership. "The dogs ran" (plain plural) vs "The dogs' bowls are full" (possessive -- the bowls belong to the dogs).

5. Read the whole phrase to check meaning: If something is being owned or belongs to the noun, you need a possessive. "The players' jerseys are muddy" -- the jerseys belong to the players, so you need the apostrophe.

Common Mistakes

Clue Words

Signals for plural possessive (regular, ending in -s):

the boys', the girls', the students', the players', the teachers', the neighbours', the babies'

Signals for plural possessive (irregular, NOT ending in -s):

the children's, the men's, the women's, the people's, the mice's, the geese's

Words that hint at ownership:

belongs to, of the, their -- these suggest a possessive noun may be needed

Tip: Ask two questions: "How many owners?" and "Does the plural end in -s?" If the plural ends in -s, the apostrophe goes after the -s (boys'). If the plural does NOT end in -s, add 's (children's).

Practice Tips

1. The two-step method: First, write the correct plural form of the noun. Second, decide where to place the apostrophe. "Pupil" becomes "pupils" (ends in -s) so the possessive is "pupils'". "Child" becomes "children" (does not end in -s) so the possessive is "children's".

2. The "belongs to" test: Turn the phrase around to check. "The teachers' staff room" becomes "the staff room belongs to the teachers." If it makes sense, the possessive is correct.

3. Spot the difference: Look carefully at these three forms and practise telling them apart: "dogs" (plural -- more than one dog), "dog's" (singular possessive -- belongs to one dog), "dogs'" (plural possessive -- belongs to more than one dog).

4. Irregular plural checklist: Memorise these common irregular plurals that do NOT end in -s: children, men, women, people, mice, geese, teeth, feet. These always take 's for the possessive form.

Quick Reference