An intensive adverb.
Generally, the more any of these adverb is stress, the more negative the sentence sound.
Adverb is used to modify verb, such as "quickly" in "she runs quickly".
It is an adverb.
the word class that qualifies verbs or clauses
a word that modifies something other than a noun
Adverbs are used to modify verbs, such as "quickly" in "she ran quickly".