You

The pronoun you (stressed /ˈjuː/, unstressed /jə/) is the second-person personal pronoun, both singular and plural, and both nominative and oblique case, in Modern English. The oblique (objective) form you functioned previously in the roles of both accusative and dative, as well as all instances after a preposition. The possessive forms of you are your (used before a noun) and yours (used in place of a noun). The reflexive forms are yourself (singular) and yourselves (plural).

Usage

In standard English, you is both singular and plural; it always takes a verb form that originally marked the word as plural, (i.e. you are, in common with we are and they are). This was not always so. Early Modern English distinguished between the plural ye and the singular thou. As in many other European languages, English at the time had a T-V distinction, which made the plural forms more respectful and deferential; they were used to address strangers and social superiors. This distinction ultimately led to familiar thou becoming obsolete in modern English, although it persists in some rural English dialects. Because thou is now seen primarily in literary sources such as the King James Bible (often directed to God, who is traditionally addressed in the familiar) or Shakespeare (often in dramatic dialogues, e.g. "Wherefore art thou Romeo?"), it is now widely perceived as more formal, rather than familiar. Although the other forms for the plural second-person pronoun are now used for the singular second-person pronoun in modern English, the plural reflexive form "yourselves" is not used for the singular; instead "yourself" is used for the singular second-person reflexive pronoun.