Explain the difference in use between the familiar and formal forms of the imperative mood in Spanish. The second person pronouns tú and vosotros, which are both you in English, are familiar forms. Familiar forms should be used only with family members, close friends, children, peers, and animals. For example, habla "speak" can be said to a student by a teacher or to a child by a parent.
The second person pronouns usted and ustedes, which are both are also you in English, are formal forms. Formal forms are always used with strangers, casual acquaintances, superiors, professional colleagues, people with formal titles, and others not well know to the speaker. For example, beba "drink" can be said to a supervisor by an employee or to a parent by a child.