English has seven words that behave very strangely when you change them from the singular to the plural. These are called THE MUTANT PLURALS of English. They're super cool.

Concepts

plural nouns, irregular plural nouns

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Additional Tags

irregular plural noun, khan academy, khan academy: irregular plural nouns - the mutant plurals, mutant plurals

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Classroom Considerations

• Knovation Readability Score: 1 (1 low difficulty, 5 high difficulty)
• The intended use for this resource is Instructional