Prepositions: When to use In, On & At [Plus Examples!]
preply.com › en › blogMar 22, 2021 · Two of the most common contexts in which in, at, and on are used involve identifying where someone or something is (place) and when something happened (time). The charts below explain when these prepositions should be used in the numerous situations of time and place. In, on & at as prepositions of place In, on & at as prepositions of time