To talk about your country, your city.

I am from Paris, I am French.  or I come from Paris, I am French. and you?

Where are you from? or Where do you come from ?          I am English, I am from London. or I am English, I come from London.

 To introduce your family. 

This is my father.       I have got an elder brother

This is my mother.         I have got three younger brothers.

 To say good bye.