Ser Y Estar

Question 1

When do you use ser?

Answer 1

To describe physical or personality characteristics that remain relatively constant
To explain who or what someone or something is
To tell time or to tell when or where an event takes place
To tell where someone is from and to express nationality

Question 2

When do you use estar?

Answer 2

To describe physical or personality characteristics that can change, or to indicate a change in condition
To describe the locations of people or places
With the present particle to create the present progressive