Identify who is which part of speech

The word who is a pronoun in English grammar. It is used as an interrogative pronoun in questions such as Who is coming or as a relative pronoun in sentences such as The person who helped me. Pronouns replace nouns to avoid repetition and make sentences smoother. Who specifically refers to people and plays an important role in both spoken and written English. It cannot be classified as noun adverb or adjective in this context. Correct identification of pronouns helps learners improve their understanding of grammar structure and sentence construction which is tested in many competitive examinations.