P*-os and P*-oes

This is the rules to create a plural from a word that ends in o

If the word ends in a single o, then we drop the o and add -oes to make it plural

If the word ends in a double o, then we just need to add an s to make it plural

kangaroo -> kangaroos

echo -> echoes

Synthetic Inquiry: Find 5 nouns (not from the word list) that end in a single f and 5 nouns that ends in a double f. Apply this rule to show how to make these nouns plural. What words are exceptions to this rule? Challenge yourself to think of the words in your head or use technology to support you.

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