Does it end in a consonant + Y?, No, Yes, If yes, what do you do?, Drop Y, add -IES, Add -ES, No change, Add -S, Does it end in -SS, -SH, -CH, -X, or -O?, Yes, No, If yes, what do you do?, Add -S, Drop Y, Add -IES, Add -ES, Does it end in a vowel (A, E, I, O, U) + Y?, No, Yes, If yes, what do you do?, Drop Y, Add -IES, Add -S, Add -ES, If no, what is the final rule?, Add -ES, Drop Y, Add -IES, Just add -S

Regular Plural Nouns

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