Final answer:
The manner in which the action of a verb is performed is often shown by adverbs.
Step-by-step explanation:
The manner in which the action of a verb is performed is often shown by adverbs.
Adverbs are words that modify verbs, adjectives, and other adverbs. They provide information about how, when, where, and why an action is performed. For example, in the sentence 'She quickly ran to the store,' the adverb 'quickly' shows how the action of running is performed.
Therefore, adverbs are used to indicate the manner in which the action of a verb is performed.