adverb

An adverb is a word that modifies a verb, an adjective, or another adverb, and sometimes expresses the speaker's attitude toward the action. It answers questions such as how, when, where, and to what extent. Examples include quickly, very, here, tomorrow, and well. Adverbs differ from adjectives in that they generally do not modify nouns.

Common categories: manner, place, time, frequency, and degree. Manner describes how an action is performed (she spoke softly). Place indicates location (here). Time indicates when or for how long (yesterday, soon). Frequency shows how often (always, never). Degree expresses intensity (quite, almost).

Adverbs can occur before or after the verb they modify, or at sentence boundaries. Frequency adverbs often appear before the main verb (she always arrives early); adverbs of time often go at the end (we will go tomorrow). Most adverbs are formed with -ly from adjectives (slow -> slowly), but many adverbs have irregular forms (well, fast) or no -ly (often, almost).

Adverbs may be single words, adverbial phrases (in the morning, with ease), or adverbial clauses (because the weather was bad). These elements supply circumstantial information about manner, place, time, cause, or condition and can be essential for clarity or emphasis.