Here's why:
* Adverbs modify verbs, adjectives, or other adverbs. They tell us how, when, where, or to what extent something happens.
* Many adverbs are formed by adding "ly" to an adjective. For example:
* slow (adjective) becomes slowly (adverb)
* happy (adjective) becomes happily (adverb)
* quick (adjective) becomes quickly (adverb)
However, it's important to note:
* Not all words ending in "ly" are adverbs. Some are adjectives (e.g., "lovely," "friendly," "lonely").
* Not all adverbs end in "ly." Some common adverbs don't have this ending (e.g., "very," "quite," "always," "never").
Let me know if you'd like more examples or have any further questions!