An adverb describes a verb, an adjective or another adverb. It tells us How, Where, When, How much and with what frequency.
An adverb is a word that describes a verb, an adjective, another adverb, or even a whole sentence. Adverbs often end in -ly, but some look exactly the same as their adjective counterparts.
– Fortunately, Lucy recorded Tom’s win.
– The soccer match ended quickly.