Теория:
Study some information about the verb 'to be' in the Past Simple.
Для того, чтобы сказать о том, где вы были вчера или несколько минут назад, вам необходимо использовать глагол to be в прошедшем времени.
I was
you were
he, she, it was
We were
You were
They were
Examples:
I was at school yesterday.
My friend was in the shop last Sunday.

Рис. \(1\). Shopping
Чтобы сообщить о том, что вы не были где-то или определенный предмет не обладал такими качествами, вам необходимо использовать глагол to be + частицу not.
I was not
you were not
he, she, it was not
We were not
You were not
They were not
Examples:
They were not at the party.
Mary wasn't happy.

Рис. \(2\). Unhappy
Запомните сокращенные формы отрицаний:
was not = wasn’t
were not = weren’t
Источники:
Рис. 1. Shopping, 2016, https://pixabay.com/images/id-1232944/ Pixabay License CC0 Free for commercial use No attribution required
Рис. 2. Unhappy, 2016, https://pixabay.com/images/id-1848477/ Pixabay License CC0 Free for commercial use No attribution required