... Plural Nouns Nouns have a singular form and a plural form. The singular is the form that means only one: boy, girl, soda, hamburger, etc. The plural is the form that means more than one: boys, ... singular. Sample: grandchildren 1. lamps 2. gentlemen 3. addresses 4. flowers 5. circuses grandchild feet wishes hands NOUNS 29 Rule 3. For most nouns ending in f: Add s to form the plural. belief ... (Langston Hughes) soul, rivers 1. Fog forced the airport to close. 2. The fleet has left the Indian Ocean. 3. Mrs. Thorpe has invited two sisters and a brother-in-law to her son’s graduation. N. V....