Pronouns

This should be a short and very non-confusing lesson. . .maybe xD

Pronouns
I - yo
You[ sing. inf. ] - tú ( Accent is IMPORTANT when writing or else it means YOUR )
He, She - él, ella
You[ sing. form. ] - Usted ( often abbreviated as Ud. )
Us/we - nosotros
You[ pl. inf. ] - Vosotros ~used only in Spain~
They - Ellos, Ellas
You [ pl. (form.) ] - Ustedes ( Uds. )

Notes:: As I said, tú MUST have an accent when written( there's no distinguishing difference in speech ) or it means something different! Also, the vosotros pronoun and verb forms are only used in Spain. It's just what they like there I s'pose. Uds. is used for plural third person all the time everywhere else.
Informal: younger, same age, friends, family, etc
Formal: Superiors, older, stranger, teachers, etc
[ mixing the two can be considered rude if you use tú with some old guy you've never met before x3 ]