2. Most singular Nouns add s. Car Cars Nouns ending in s,x,sh or ch, add es. Cherry Cherries Nouns ending with a vowel and y add s. City Cities Nouns ending with a consonant and y; change the y to I and add es. Calf Calves
3. Nouns ending with a vowel and o add s. Radio Radios Nouns that have special plural spellings. Tower Towers Nouns that remain the same. Deer
4. Common nouns Book Proper Nouns Percy Jackson To make a singular possessive noun, add an apostrophe s. Ringmaster’s Ring To make a plural noun that ends in s a possessive,add an apostrophe to the end of the word. Cats’ rubber toy
5. To make a plural noun that does not end in s possessive,add an apostrophe s. Children's toys