To be, or not to be

You know that the verb «to be» means «ser» (I am a student) or «estar» (I am in the kitchen). It isn’t difficult. You can be sure that you don’t need a thinking cap. ;-) 

Look at its affirmative, interrogative and negative forms.

If you would like to study and practise it, you can do it in these links: curso-ingles.com and english4u.com.