We know that tu and su are possessive pronouns. The difference between these two is the same as the one between tú and usted: tu is the informal way of saying “your,” while su is the formal one. … Su is the possessive used with usted (the formal you): Es su perro. / (Usted) tienes un perro.

How do you use Tu and Su in Spanish?

Tu and su are possessive pronouns. Tu is used for you (informal). Su is used for he, she, it, you (formal), or they. The differences in you (informal) or you (formal) are that the informal is used when talking to a friend, a child, etc.

What is the difference between Su and sus?

Su and sus are the possesive pronouns for Usted or Ustedes. You use su if the object it is reffering to is sngular, and sus is used if the objects are plural.