Answer:
Prepositions are always used to indicate the relationship of a noun or phrase to something else. When using a preposition, you must always have the subject and verb before it, and follow it with a noun. You should never follow it with a verb!
Step-by-step explanation:
Prepositions are words that are used to link a noun or phrase to another part of the sentence. Some examples of prepositions are “on”, “in”, “to” and “at”.