Incomplete question. However, I inferred you need help understanding when a word is categorized as a preposition.
<u>Explanation</u>:
In simple terms, a preposition refers to a word or group of words in a sentence that is placed before a noun, pronoun, or noun phrase in other to tell the time, direction/location, or place of an object.
Common examples of words to look o for that can act as a preposition in a sentence include:
I would rather give up air conditioning and heating for the rest of my live. The first reason is because there are other ways to get heated up and other ways to get cooler air. The second reason is because after a certain while like a normal human you will adapt and you body will adapt to the environment your in.
