I / We

I am an Indian.  
We are Indians.
You / You
You are an Indian.
You are Indians.

He/She/it/They 

He is an Indian.
She is an Indian.
It is an Indian make car. 
They are English movies. 
They are Italians.

Have / has / do / does

I have a dog.
We have dogs.
You have a pen.
You all have pens.
He has a bag,
She has a purse.
It has a tail.
They have many cars.

I do my work.
We do our work.
You do your work.
You all do your work.
He does his work.
She does her work.
It does its work.
They do their work.