An adverb is a word which describes the verb in more detail. It may describe how the action was carried out or when, where, etc.
Correctly is the adverb in that sentence.
That sentence does not have an adverb.
Subject of the sentence Verb of the sentence Adverb of Manner Adverb of Place Adverb of Frequency Adverb of time Purpose
The verb in this sentence is "running" and the adverb is "quickly."
The adverb in the sentence is "where," which modifies the verb "go." It provides more information about the location of the action.
Correctly is the adverb in that sentence.
The adverb in your sentence is 'thereafter'.
The adverb of the sentence is quickly.
The adverb in the sentence is "very," as it modifies the adverb "quietly."
The adverb in this sentence is "late."
The adverb in that sentence is downstairs. It's an adverb of place and tells where you ran.
The adverb in the sentence is "seldom," as it describes the frequency with which he did poorly on tests.