"Are" is a verb, even at the end of a sentence. For example, if you say, "Do you know where the scissors are?", "are" is still a verb. In this case, it is the verb of an embedded question. "Scissors" is the subject of the verb "are".
regular speech
it depends what word it is it could be any part of speech depending on the sentence
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.
Adjective
All subjects are part of speech for they are all nouns.
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.
a sentence is a part of speech
Why is the beginning of a interrogative sentence.
Pronoun
you