Adverbs are words that modify verbs, adjectives, or other adverbs.According to what meaning they convey, adverbs can fall into one of a number of general categories, such as:TIME: again, early, never, now, often, soon, then, today, tomorrowLOCATION or DIRECTION: above, away, below, down, here, in, inside, out, upMANNER: cheerfully, cunningly, fast, quickly, right, slowly, wellDEGREE: almost, entirely, little, much, rather, too, veryREASON: so, whyNUMBER: first, once, second, twice, third, thriceLike adjectives, adverbs have three forms of comparison: positive, comparative, superlative. The functions and characteristics of each category are the same as they were for the adjectives.ADVERBS BEYOND COMPARISONagain, almost, back, before, ever, here, never, now, past, so, then, thus, too, twice, verySome adverbs fall into one of two special classes: interrogative & negative/affirmative. Interrogative adverbs are used at the beginning of sentences to ask questions - how, when, where, why. The negative/affirmative adverbs answer questions - no, not, yes. The adverbs yes & no stand independently from the remainder of the sentence and are usually set off by commas.