Past simple

We use the past simple when we talk about actions completed in the past.

1. Affirmative form:

We form the past simple with the verb in infinitive form + ed (regular verbs), except the irregular verbs. Example:
- We bought a big car yesterday. --> Bought is an irregular verb (buy).
- I usually played football when I was a young --> Played is a regular verb and we add -ed to play. And was is an irregular verb (be).

Here, we have an irregular verbs list (it's a basic list with the most common verbs):

 

2. Negative form:

We build the negative form with didn't + infinitive verb. Example:
- He didn't eat a fish.
- They didn't make a program.

3. Question form:

We build the question form with did + person + infinitive verb. Example:
- Did she eat?
- Did they do their homework?

 NOTE: When we use the verb to be in the negative or question form we don't use did, we use was or were. Example:
- Were you in Rocio's party?
- Was she programming java?