It is a verb.
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.
It is a verb.
In a sentence, the word "action" can function as a noun.
it depends what word it is it could be any part of speech depending on the sentence
"When" is an adverb when it begins a sentence.
All subjects are part of speech for they are all nouns.
you
Pronoun
Noun
Him is a pronoun.
a sentence is a part of speech
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.