Subject pronouns
Yo- I
Tu- You (Formal/Informal)
El- he
Ella- She
Usted (Ud.)- You (formal/adult)
Nosotros/Nosotras- We
Nosotros- we boys or we boys & girls
Nosotras- we girls
Ellos- They (boys or boys and girls together)
Ellas- They (girls only)
Ustedes (Uds.)- They (grouo of - all of youO