To be: am / is / are

«Bo'lmoq» fe'li shaxsga qarab o'zgaradi:

I am — men ...
You are — siz/sen ...
He / She / It is — u ...
We / You / They are — biz / siz / ular ...

Misollar:
I am a student.
She is a teacher.
They are from Uzbekistan.

Savol: Are you ready?
Inkor: He is not (isn't) at home.