It is a preposition.
Into expresses:
motion -- We went into the city.
change of state -- The water turned into ice.
The verb for application is apply. As in "to apply for something" or "to apply something to something else".
The verb of preference is prefer. As in "to prefer something over something else".
No, "original" is not a verb. It is an adjective.
Change is already a verb. For example "to change something" is an action and therefore a verb. Another verb is exchange. As in "to exchange something for something else".
to substitute
Alternate. substitute (verb)
"Next" can be an adverb, adjective, noun, or preposition, but it is not a verb. Its main function is to indicate something that is coming after or following something else.
No, since 'wider' is comparative form of adverb 'wide'. But, there is verb 'widen'.
It means to blend in with something(s) or everyone else It means to blend in with something(s) or everyone else It means to blend in with something(s) or everyone else It means to blend in with something(s) or everyone else It means to blend in with something(s) or everyone else It means to blend in with something(s) or everyone else It means to blend in with something(s) or everyone else It means to blend in with something(s) or everyone else
Yes, "exchange" can be a verb when it is used to describe the act of giving something in return for something else. For example, "They decided to exchange gifts for their birthdays."
The word substitute can be a verb and a noun. The verb form means to use something in place of something else. The noun form is a replacement for something which does a similar thing.
No, "upon" is a preposition used to indicate position or direction in relation to something else. It is not a verb.