Prepositions - English-see.bogspot
Prepositions are words that help define the relationship between elements in a sentence. The word preposition means a word that is positioned before (pre means before) another word. However in some cases, prepositions are placed after the word. Note: A preposition is usually placed before a noun or a pronouns. Types of prepositions Prepositions of time A number of prepositions may be used to denote time: On Monday, before night, During the vacation, till noon, by evening ( a) At usually denotes a definite point of time but can also be used for indefinite periods: at 5 pm sharp, at midnight (b) On is used with days and dates: on Monday, on 5th December (c) In is used with parts of the day, month, year, season: in the morning, in winter (d) By denotes the latest time at which an action will be over: The show will be over by ...