No, "own" is a verb, adjective, or noun. You can own (have legal possession of) something. Otherwise it is used with possessive adjectives to mean personal, or unique (my own car - adjective, a car of my own - noun).
First of all, it is "preposition" and no, "own" can either be a verb or an adjective. A preposition is a word that transitions into a prepositional phrase, such as "of", "to", "in", "for", "with" and "on".
The noun volition (choice, decision, will) is often preceded by the preposition "of" in legal terms (e.g. of his own volition = by his own will) or by the preposition "by" (by his own volition).
The preposition is up.
No the word every is not a preposition.
No, the word "when" is not a preposition. It is an adverb or a conjunction used to indicate time or a condition.
Yes, the word among is a preposition.
No, it is not a preposition. The word thing is a noun.
No, it is not a preposition. The word explore is a verb.
The word " I " is not a preposition, it is a pronoun.
No, it is not a preposition. The word away is an adverb.
No, the word "early" is an adverb, not a preposition. It is used to describe the timing of an action or event.
No, it is not a preposition. The word surrounds is a verb form.