no, often is not a preposition. Prepositions relates objects. And often is merely numbering the frequency of a certain activity/verb. Therefore, often is an adverb.
adverbs: words that modifies/gives more details about a verb, adjectives and other adverbs.
ex: very, slowly, rather, & fast.
1. He walks slowly. [the verb walks is described in detail by the adverb slowly]
2. He walks very slowly. [again, the verb walks is described in detail by the adverb slowly, and in addition, the adverb very described in detail the adverb slowly]
3. Preposition ex: Janie looked among the trees.
No, it is not a preposition. The word "ouch" is an interjection (exclamation).
No, it is not a preposition. The word one is a noun, pronoun, or adjective.
The answer is "for"E.g. The procedure for gaining admission into the university is very stringent
The preposition is up.
No, it is not a preposition. The word been is the past participle of the verb "to be" and is part of its conjugations.
Out is the opposite of in and can be a preposition (out the window, out the door), but it is often an adverb, and can also be a noun.
"After" is most often a preposition. It can be an adjective.
No, it is not a preposition. The word "ouch" is an interjection (exclamation).
No, it is not a preposition. The word one is a noun, pronoun, or adjective.
The answer is "for"E.g. The procedure for gaining admission into the university is very stringent
The preposition is up.
If there is a preposition following authority, it is often "of" indicating the source of authority. The prepositions "in" or "for" would indicate the scope of authority.
No the word every is not a preposition.
No, it is not a preposition. The word been is the past participle of the verb "to be" and is part of its conjugations.
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 explore is a verb.