- a/an Use for objects that are not specific or one of several things of a similar type. E. G: I need a phone Used the first time we introduce an object. E. G: I saw a movie last night Used as synonyms for the number one. E. G: They bought a computer Used to indicate one of a group. E. G: She is a singer - The Used for specific object or objects that both the speaker and listener know. E. G: Can you give me the books on the table Used when we mention the objects again E. G: The movie is based on a real-life incident. Used before plural countries or other plural regions and bodies of water. E. G: The Netherlands Used before certain adjectives to give a plural meaning E. G: The rich Thanks for watching
