We use the simple past with the verb be to talk about how things were before.
I was young when we moved.
She was a very good student at school.
He wasn´t very quiet when he was a kid.
Was it too difficult?
You were very good students at school.
The structure is:
If we have an affirmative sentence: We have a subject, then we have the verb be conjugated in past and then we have the complement: + Subject + verb be + complement.
If it is a negative sentence: We have the subject, then we have the verb be in past, then we have not and after that we have the complement: - Subject + verb be + not + complement.
If it is a question: Remember that you can always use a WH question before the verb be, then we have the verb be, after that we have the subject and the complement and finally the question mark: ? Verb be + subject + complement + ?
Always remember to use a question mark at the end. It’s different from spanish because in spanish we have two question marks.
For other verbs, the simple past is formed by adding -ed at the end of the verb:
We moved to Canada when I was 5.
I accepted the job and moved to Mexico.
She didn’t work there for so long.
There are some verbs that change:
She spoke English and Portuguese.
He had a very good friend when he was a kid.
They didn’t spend time watching TV.