When speaking Spanish, the pronoun you use depends upon the person you’re speaking to and the person you’re speaking about. And, just as in English, you change pronouns according to person — I, you, he or she and we, you, they. The following table shows all the Spanish subject pronouns:

Singular Plural
1st Person yo (I) nosotros/as (we [male or mixed group/female])
2nd Person (you 
[informal]); Ud. (you [formal]) vosotros/as (you [informal; male or mixed group/female]); Uds. (you [formal])
3rd Person Žl (he); ella (she) ellos/as (they [male or mixed group/female])