A preposition is what we use to connect words showing the relation of a noun, or a noun substitute to some other word in the sentence.
Above About Across Against Along Among Around At Before Below Beneath Beside Between Beyond By Down During Except For From In Inside Into Like Near Of Off On Since To Toward Under Until With Within
In- We use the preposition in when we talk about months, seasons, country, city or town names, and times of the day (except night) Ex. My birthday is in November. On- Use on with specific days Ex. Are you going to the game on Friday?
At- Use at for specific times Ex. We left for school at 7:30. To- Use the preposition to with verbs that show movement. Ex. Come to the movies with me.
http://esl.about.com/library/beginner/bleasypreps. htm http://www.sfsu.edu/~carp1/pdf/Prepositions%202.pdf http://www.chompchomp.com/terms/preposition. htm Works Cited