Hi Amy! I would just add to Ms. Morgan's answer, that if you haven't heard from it yet, you should read about the use of "usted" in Spanish. In Spanish (as in many languages like French, Italian, Russian, etc) there are two forms of saying "you". One is informal, which would be "tú" in Spanish, and one is formal, which would be "usted" in Spanish. They are both "you" in English (that's why I love English, no complications in this regard whatsoever, ha ha ha). But in Spanish, they are conjugated differently: "Tú tienes un perro muy bonito." ---> You have a nice dog. "Usted tiene un perro muy bonito." ---> You have a nice dog. The first one, you usually say it when talking to friends, family members -although some people refer to their elders as "usted" -, work colleagues with whom you have more trust, you also use it to refer to kids and teenagers, and so on. The second one, "usted", is a bit trickier to describe, because there are no "hard" rules. Some say it's used with strangers, but that isn't true for every situation, there are some situations where you realize using "tú" is ok. It depends more on the person, some people like being treated with "usted", so they'll refer to you as "usted" as well. It usually is used with people who are your senior, it is also commonly used to refer to your boss, or people who are "important" (however you want to define "important" ha ha ha, because I believe everyone is important, but you get the idea). And the same way that you use a different verb ending for "tú" and "usted", well, you use a different possessive pronoun for "tú", which is "tu", and one for "usted", which is "su". If you have more questions, don't hesitate to ask. Bye!

Hello! SU is used for "your" formal. You may use it with someone older or a stranger you don't know well. It's to show respect. Example: you are on an airplane and you ask the person next to you" ella es su hija?" - is she YOUR FORMAL daughter? TU is used for "your" informal. You may use it with younger people or with family and friends. Example: aca esta tu bebida- here is your drink. I hope that helps you! I am available to help you with conversational, informal Spanish. Atentamente, Ms. Morgan