It can be either, depending on whether it has an object.
"He climbed up the mountain" (preposition, object mountain)
"He entered the elevator and went up" (adverb, no object).
It can be either. It can be a preposition, or it can be an adverb (walking about), or even possibly an adjective (up and about).
When up is used as an adverb, it isn't followed by a noun.Dave jumped up. (adverb)Dave walked up the stairs. (preposition)
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 a preposition. The word exactly is an adverb.
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).
It can be either. It can be a preposition, or it can be an adverb (walking about), or even possibly an adjective (up and about).
No. The words up and upon are prepositions, but upwards is an adverb. It cannot be a preposition.
When up is used as an adverb, it isn't followed by a noun.Dave jumped up. (adverb)Dave walked up the stairs. (preposition)
Yes, it can be. But it can also be an adverb (walking about) or possibly an adjective (up and about).
No, it is not a preposition. Tall is an adjective and possibly 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.
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.
preposition
Adverb: I had a hat on. Preposition: I didn't have any money on me.
In this adverb form of "with" meaning "accompanying," along is an adverb and with is a preposition.
Yes "throughout" is a preposition.Yes, it can be a preposition. But it can also be an adverb by itself.
No, it is not a preposition. It is an adverb.