Six Preposition Rules | Grammar | EnglishClub
https://www.englishclub.com/grammar/prepositions-rules.htmSix Preposition Rules. Prepositions form a small but very important word class. We use prepositions very frequently. In fact, the prepositions to, of, in, for, on, with, at, by, from are all in the top 25 words in English. If you can understand and correctly use prepositions, it will greatly improve your fluency.