Verbs can be forms of "be". I am a teacher. You are a student. He is a nurse. She is an engineer. They are married.
Here is practice with BE
Statements use the subject before the verb. Questions move the verb before the subject.
I am a teacher. Am I a teacher?
You are a student. Are you a student?
He is a nurse. Is he a nurse?
She is an engineer. Is she an engineer?
They are married. Are they married?
We are very smart. Are we very smart?
I run in the park.
You walk with your children.
He sings a song.
She dances at night.
We eat ice cream.
They play soccer.
Action questions MUST add "do" or "does" before the subject.
Do I run in the park?
Do you walk with your children?
Does he sings a song?
Does she dances at night?
Do we eat ice cream?
Do they play soccer?