Question

what r the positions of preposition?

Answer 1

Examples:

Prepositions of position:
 Our friends live just across the street.. I live in London.   There are people inside the house. He lives within a mile of the airport  Our house is opposite the post office.  There are problems throughout the  programme

Answer 2

After Noun
After adjactive
After verb
Preposition follows direct object of transitive verb

Preposition in front of a prepositional phrase