Look for an object: a noun or pronoun or the equivalent which normally follows the preposition. If there is none, the word in that usage is an adverb.
Example:
We walked on. (adverb)
We walked on the beach. (preposition)
Sometimes the object is separated from its proposition.
- Who (whom) did she see her boyfriend with?
The object whom is the object of the preposition with.
- Which war did he serve during?
The object is which war: he served during which war?
Prepositions typically show a relationship between a noun/pronoun and another element in a sentence, while adverbs modify verbs, adjectives, or other adverbs. To determine if a word is a preposition or an adverb, check if it is followed by a noun/pronoun (preposition) or if it modifies a verb/adjective/adverb (adverb).
No, the word "away" is not a preposition. It is typically an adverb that describes movement or distance.
The word "on" can function as either a preposition or an adverb depending on how it is used in a sentence.
No, the word "again" is not a preposition. It is an adverb that describes the repetition or recurrence of an action or event.
No, the word "why" is not a preposition. "Why" is actually an adverb used to ask for the reason or cause of something.
No, the word "even" is not a preposition. It is commonly used as an adverb, conjunction, or verb modifier in sentences.
It is never an adverb. It is always a preposition. The word "within" can be an adverb or a preposition, and the word "forthwith" (immediately) is an adverb.
It is never an adverb. It is always a preposition. The word "within" can be an adverb or a preposition, and the word "forthwith" (immediately) is an adverb.
No, it is not an adverb. The word into is a preposition.
No, the word "away" is not a preposition. It is typically an adverb that describes movement or distance.
No, of is not an adverb. The word of is exclusively a preposition, but sometimes is separated from its object (e.g. what is that bolt a part of?).
The word with is not an adverb; it is a preposition. The word "without" may be an adverb (e.g. to do without, where no specific object is used).
The word "on" can function as either a preposition or an adverb depending on how it is used in a sentence.
No. The word from is a preposition. However, with a noun object, it can form an adverbial phrase.
No, the word "again" is not a preposition. It is an adverb that describes the repetition or recurrence of an action or event.
It is a sentence. The word "on" is an adverb and the word "for" is a preposition.
No, the word "from" is a preposition. It cannot be used as an adverb.
No, the word "why" is not a preposition. "Why" is actually an adverb used to ask for the reason or cause of something.