correctly
The adverb form of the word "correct" is correctly.An example sentence for you is: "She answered all the questions correctly".
neatly
Correct is the adjective; correctly is the adverb.
No, it is an adjective. Anonymously is the adverb form.
The related adverb form is decreasingly. It is the adverb form of the present participle, decreasing. The past participle, decreased, does not form an adverb.
It can be, but the usual (correct) adverb form is quickly.
Hardly is correct.
The adverb form for the adjective obese is obesely.
The adverb form of the word "correct" is correctly.An example sentence for you is: "She answered all the questions correctly".
neatly
Yes, but not formally. It can be an adverb when it means "more quickly" which is the grammatically correct form.
The correct spelling of the adverb form is "unsatisfactorily" (not well).
No. The word "not" is an adverb, or more rarely a noun.
Yes, actually, it is. Lonesomely is the adverb of lonesome.
The adverb form is not. It forms the negative of some adjectives and adverbs (e.g. the answer was not correct). It can also rarely be a noun, in programming.
The adverb form is "possibly" (the adjective form possible drops its E) .The correct spelling is possibly.
Early is both an adjective and adverb.