Final answer:
Adverbs commonly end in -ly.
Step-by-step explanation:
Adverbs commonly end in -ly. An adverb is a word that modifies or describes a verb, adjective, or another adverb. It provides more information about how, when, or where the action is happening. For example, in the sentence 'She ran quickly,' the word 'quickly' is an adverb that describes how she ran.
Learn more about Parts of speech