Prepositions Recall first that the direct object of a transitive verb answers the questions: What? OR: Who? Examples: You saw a movie. What did you see? He bought a car. What did he buy? She loves him. Who does she love? She carried her son. Who did she carry? Prepositions answer different questions…
John is sitting by a tree. Where is John sitting? Prepositions answer the question When: John left in the morning. When did John leave? He went to school. Where did he go? The book is on the shelf. Where is the book? It starts before 10 am When does it start? They ate lunch at noon. When did they eat lunch?
Prepositions never appear by themselves. They are followed by a noun-phrase or a pronoun .
*The pen is on . The pen is on the desk *She looked at . She looked at him . The underlined word below also answers the question When . But is it a preposition? John saw the movie yesterday . NO!!! *John saw the movie in John saw the movie in the afternoon
above the table; across the table; against the table; around the table; behind the table; below the table; beneath the table; beside the table; between the tables; by the table; on the table; over the table; under the table.
after 12 o'clock; around 12 o'clock; at 12 o'clock; before 12 o'clock; by 12 o'clock; about that time; during that time; for that time; since that time; throughout that time; till that time; towards that time; until that time; within that time.