With most verbs the past tense is formed by adding -ed:

call >> called; like >> liked; want >> wanted; work >> worked

But there are a lot of irregular past tenses in English.

Use

We use the past tense to talk about:

• something that happened once in the past:

I met my wife in 1983.
We went to Spain for our holidays.
They got home very late last night.

• something that happened again and again in the past:

When I was a boy I walked a mile to school every day.
We swam a lot while we were on holiday.
They always enjoyed visiting their friends.

• something that was true for some time in the past:

I lived abroad for ten years.
He enjoyed being a student.
She played a lot of tennis when she was younger.

• we often use phrases with ago with the past tense:

I met my wife a long time ago.