Adverbs Tell When Where How And Why. When an adverb modifies a verb, it tells us how, when, where, why, how often, or how much the action is performed. It refers to a time expression.it means in/on which.
Adverb phrases function like adverbs, modifying a verb or adjective.
(this is an adverbial phrase. When does the next bus arrive? Adverbs that tell us how often express the frequency of an action. Adverbs of place tell us the location something happens and do not change the meaning of adjectives or adverbs.
