Du and Ihr?
I am really confused. This syas that "Du" and "Ihr" in German both mean "you". What is the difference? Can you use them interchangeably? Please help!
"Du" is the informal singular you as in "Emily, can you please help me?" One person that you are familiar enough with to address them with their first name.
"Ihr" is the informal plural you as in "Emily and Jack, can the two of you please help me?" Multiple persons you are familiar with.
"Sie" is the formal singular you as in "Mrs. Smith, could you please help me?" and "Mrs. Smith and Mr. Peters, could you please help me?" One or multiple person that you don't know well enough to address them with their first name.
They are not interchangeable at all, they are all used for certain situations where no other translation would be correct.
I suggest you to have a look at the lessons. They should cover it pretty early in the tree.
Du is when you're talking to a specific person, while ihr is when you're talking about a group of people (yourself not included, then it would be wir). You could say it's kind of "you all" (you all are going to the cinema). Don't mess it up with sie though, you could say ihr is when you're talking to a group, while sie is more when you're talking about a group.