Irregular plurals · Learn the idea
Irregular plurals
Some plurals do not follow the usual add-s or add-es patterns. We call them irregular plurals.
Some words change inside: tooth becomes teeth. Some change more: child becomes children.
Some stay the same: one sheep, two sheep. Learn the whole pair and use it in a sentence.
child → children; mouse → mice
We say two children and three mice.
tooth → teeth; foot → feet
The vowel sound changes in these pairs.
sheep → sheep; woman → women
Sheep stays the same. Woman changes to women.
Remember: Say the pair together: one child, two children. Adding s will not work for every noun.
Grown-up guide
Later answers: women, feet, sheep. Practise a few pairs at a time, in sentences, and revisit them. This is a starter set rather than an exhaustive list.
Allow about 10 minutes, with breaks as needed. Listen to the explanation and look at the child’s own sentences. Correct choices alone do not show mastery. Writing is reviewed together, not automatically marked.
A useful starting point: regular plurals.
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