To be present and past

I am - I was

You are - You were

We are - We were

They are - They were

He is - He was

She is - She was

It is - It was 

Full Forms of the verb to be

I	am	a student.
He	is	a teacher.
She	is	a journalist.
It	is	a book.
We	are	mechanics.
You	are	pilots.
They	are	policemen.

Contracted forms of the verb to be

I	am	a student.
He	is	a teacher.
She	is	a journalist.
It	is	a book.
We	are	mechanics.
You	are	pilots.
They	are	policemen.

1. I was happy.
2. You were angry.
3. She was in London last week.
4. He was on holiday.
5. It was cold.
6. We were at school.
7. You were at the cinema.
8. They were at home.
9. The cat was on the roof.
10. The children were in the garden.