Actions that started and finished in the past: I didn't go to the beach yesterday.
Yesterday, in October, in 2006, ....
Form
- with regular verbs: infinitive + -ed
- with irregular verbs: 2nd column of the list
Affirmative sentences: use the same form of the verb every time.
regular verbs
I played football
irregular verbs
I went to the cinema
Form
- with regular verbs: did not (didn't) + infinitive
- with irregular verbs: did not (didn't) + infinitive
regular verbs
I didn't play football
irregular verbs
I didn't go to the cinema
Form
- with regular verbs: did + subject + infinitive .... ?
- with irregular verbs: did + subjet + infinitive .... ?
regular verbs
Did I visit Carla?
irregular verbs
Did she meet her friends?