Examples:
I found the film dull.
the meeting went and the directors were happy with the outcome.
Crabs are known for walking .
members are allowed to enter.
I have eggs for breakfast.,
I will eat fried eggs .
the quality was poor.
An is a word that modifies a verb, adjective, another adverb, determiner, noun phrase, or sentence. Adverbs typically express manner, place, time, frequency, degree, level of certainty, etc., answering questions such as how?, in what way?, when?, where?, and to what extent?.