This document discusses prepositions in English. It provides a list of common prepositions like at, on, in, for, from etc. It gives examples of how to use prepositions of time and place correctly in sentences. It also lists some verbs that are not followed by prepositions. The document contains exercises where readers are asked to identify errors related to preposition usage and fill in blanks with appropriate prepositions. It highlights some prepositions that are often misused like between and among, beside and besides. Overall, the document aims to help readers understand and use English prepositions properly in their writing and speech.