The document discusses different types of adverbs in English: 1) Adverbs of manner describe how something is done (e.g. badly, rightly). 2) Adverbs of place describe where something occurs (e.g. there, under, behind). 3) Adverbs of time describe when something happens or the direction of time (e.g. never, after, yesterday). 4) Adverbs of frequency describe how often something occurs (e.g. often, sometimes, ever, seldom). 5) Adverbs of certainty describe undoubted facts with strong assurance (e.g. absolutely, certainly, obviously, surely). Examples of each adverb type are provided.