The following sentence containing a collective noun is letter B: Listen, my children, and you shall hear. Common nouns are nouns that are in a group. Nouns are names of a person, animal, place, event, etc. It could be proper or common noun. Common nouns are names of general items and you find them everywhere you go. These words are not usually capitalized, except if it is the starting word in a sentence. Proper nouns on the other hand are more specific names and they are capitalized.