An adverb is one of the parts of speech used to limit or qualify the signification of an adjective, verb, or other adverb; as, very cold, naturally brave, much more clearly, readily agreed. Adverbs may be classified as follows: 1) adverbs of time, as, now, then, never, etc; 2) of place, as, here, there, where, etc; 3) of degree, as, very, much, nearly, almost, etc; 4) of affirmation, negation, or doubt, as, yes, no, certainly, perhaps, etc. 5) of manner, as, well, badly, clearly, etc. Research Adverb