Question

what are prepositions???​

Answer 1

a word or phrase that is used before a noun or pronoun to show place, time, direction, etc.

Answer 2

Explanation:

a word governing, and usually preceding, a noun or pronoun and expressing a relation to another word or element in the clause, as in ‘the man on the platform’, ‘she arrived after dinner’, ‘what did you do it for ?’.