If there is anyone who is pretty good in Spanish, can you please explain to me the major differences in usage of the verbs Ser and Estar? I understand the use of Ser for example when saying where you are from...Soy De....and Estar when responding to how you feel...Estoy Cansado, however, i'm not picking up on the other differences which seperate the word.
For example, if I were talking about myself and my cousins, would it be Mis Primos Y yo estamos or somos?
Thanks if anyone can help