It is generally an adverb when located at the beginning of a sentence. You should find that it modifies the verb that follows it, as to where. However, it could be a pronoun if it represents a thing or things.
adv.
>At or in that place: "Sit over there." "There she goes." "There's the parking lot!"
>To, into, or toward that place: "I wouldn't go there again. "
>At that stage, moment, or point: "Stop there before you make any more mistakes."
>In that matter: "I can't agree with him there."
pron.
>Used to introduce a clause or sentence: "There are numerous items." "There must be another exit."
>Used to indicate an unspecified person in direct address: "Hello there!"
adj.
>Used especially for emphasis after the demonstrative pronoun that or those, or after a noun modified by the demonstrative adjective that or those: "That person there ought to know the directions to town. "
>Nonstandard/Slang (generally in the Southern U.S.) - Used for emphasis between a demonstrative adjective meaning "that" or "those", and a noun: "No one is sitting at that there table." "Them there beans ought to be picked."
n.
>That place or point: "It stopped and went on from there."
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Verbs
Why is the beginning of a interrogative sentence.
In the sentence, "Which is his sister?", "which" is an interrogative pronoun.
Noun--however, many words have several possible parts of speech; please submit the Whole Sentence when asking for part of speech--cannot be sure without seeing how it is used in the sentence, as that's what determines the part of speech.
Her is a pronoun.
regular speech
it depends what word it is it could be any part of speech depending on the sentence
Verbs
The action in a sentence is the part of speech known as a verb.
The part of speech for "gliding" is a gerund, which functions as a noun in a sentence.
The part of speech of "correct" in this sentence is an adjective.
The part of speech that answers "what" or "whom" in a sentence is a pronoun. Pronouns are words like "he," "she," "it," "they," "who," and "what" that replace nouns in a sentence.
All subjects are part of speech for they are all nouns.
a sentence is a part of speech
Why is the beginning of a interrogative sentence.
you
Noun