I am really confused. Why is there a Vosotros meaning the plural "you" when there is already a Ustedes meaning the same thing? Also, Why haven't I learned it yet? It's been mentioned in the tips and notes section, but I haven't learned it and I don't really know what it means. Thanks!
Happy learning and have a wonderful day! - TresLangues
"Vosotros" is used only in European Spanish. It is used when speaking to a group of people informally.
"Ustedes" is used in both European and Latin Spanish. In both "ustedes" may be used to speak formally to a group of people however in Latin Spanish it is also used to speak to a group of people informally since "vosotros" is not used in Latin America.
Let me know if this is helpful ;).
Since Duo teaches Latin American Spanish, Ustedes or Usted is used instead of Vosotros which is European Spanish, which is why you have only seen it in the tips and notes.
This might help: https://spanishto-english.com/spanish-subject-pronouns
Vosotros and vosotras are the informal plural "you". However, they are used primarily in Spain. You won't hear them in Latin America. They follow the same rules for gender as nosotros and nosotras.
Ustedes is used in both formal and informal situations to mean "you all" in Latin America. However, in Spain, ustedes is used only in a formal situation.