The pronoun that takes the place of the noun (nouns) for the person spoken to is you.The pronoun 'you' can be singular or plural, subjective or objective.Examples:Jane, you are such a good friend. (singular, subject of the sentence)Students, you have one hour to finish the test. (plural, subject of the sentence)I will call you tomorrow. (singular, direct object of the verb 'will call')Jack and Jill, I've made Sandwiches for you. (plural, object of the preposition 'for')