No. Might is a helping verb that can be used with the verb to be. It is the past tense and conditional form of the compound verb "may be."
The word non- is a prefix. It might be considered an adjective or adverb as "not" is. But it's not a preposition.
A preposition that comes after useful might include for, except, during, and inside.
you might be thinking of 'to' (preposition, adverb) sounding like 'two'
A preposition that might come after cure could include except, after, before, about, or even for.
Yes, it is a preposition. It means in spite of.
We might see you after the movie.
The preposition that typically follows the word pride is "in." For example, one might say "I take pride in my work."
Usually the preposition "to" or "into" follow the word "accepted." For example, one might say, "I was accepted into Harvard University." The preposition "by" is also sometimes used, as in "She was accepted by the group of girls."
The preposition "against" is typically used after the word "prejudice." For example, one might say "prejudice against a certain group of people."
The preposition "in" is typically used after the word "competency." For example, one might say "She demonstrated competency in project management."
The preposition for "insist" is generally "on". For example, one might insist on a particular course of action or insist on having something done a certain way.
A preposition will use an object (noun, pronoun, or an equivalent phrase). Example: Getting dirty is part of being a cowboy. (being a cowboy is a noun phrase, object of the preposition of) Where an adverb might also be used as a preposition, 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)