A preposition can show us place or express time. It can also follow a verb or adjective. Here are some examples.
- Prepositions of place (in, on, at)
- Prepositions of time (in, on, at, during, for, over, or, by, until)
- Prepositional verbs
- Prepositions after adjectives (1) (afraid of, angry about, etc.)
- Prepositions after adjectives (2) (aware of, depend on, etc.)