So then prepositions come after the subject or noun? Well it's not  pre position anymore :D, but yes. In most cases correspondants on english prepositions are ensings in word. There are some pre- and postpositions too, in rare use.    For example In house would be talossa where talo means house and -ssa is in.    Next to house could be talolla or talon vierellä depending on situation. -lla is normally correspondant for english on.