 Articles. Singular count nouns cannot stand alone in a sentence. They must be preceded by one of the following. One. An article. The, a, an. An apple is on the table. The professor gave us a test. Two. A number or quantifier. One. Another. The other. Each. Every. Either. Neither. One man was in Chicago. The other man was in St. Paul. Neither man was with his wife. Either man could be in trouble. Note. Never use the and another. Each. Every. Neither. Or either together. Three. This, that, some. This artist created that painting. Some woman came to see you. Four. A possessive pronoun or noun. It is my bicycle now. It was John's bicycle. Note. Do not use articles and possessives together. Proper nouns have their own article usage. Don Smith lived next door to Dr. Zimbongo. The Empire State Building is in New York City. Non-count and plural nouns can be used without articles only in the generic sense. Cats are enemies of dogs. Water is essential for survival.