Grammar: Adverb

An adverb is a word used to modify a verb, an adjecive or another verb (never a noun). An adverb usualy answers one of these questions: where? when? how? To what extent? When an adverb modifies an adjective, or an adverb, it usually comes immediately before the word it modifies: very happy, almost certainly. But when an adverb modifies a verb, it may appear almost anywhere in a sentence.