Проспрягайте глагол-сказуемое в следующих предложениях : 1) i am a teacher 2)i am a student 3)i am a doctor. !

I am a teacher. 
He is a teacher
She is a teacher
We are teachers
You are  teachers
They are  teachers

 I am a student. 
He is a student. 
She is a student. 
We are students.
You are students.
They are students.

I am a doctor 
He is a doctor
She is a doctor
We are doctors. 
You are doctors.
They are doctors.