The Past Simple with 'be'
Here's how to make the positive:
Positive with 'be'
I was cold
you were tired
he was in the garden
she was late
it was sunny
we were on holiday
they were hungry
To make the negative with 'be', just add 'not':
Negative with 'be' Negative Short Form
I was not sleepy I wasn't sleepy
you were not on the bus you weren't on the bus
he was not at school he wasn't at school
she was not beautiful she wasn't beautiful
it was not cold it wasn't cold
we were not at work we weren't at work
they were not tired they weren't tired