PAST SIMPLE

1. FORM

1.1. Regular verbs

1.1.1. Add -ed

1.1.1.1. stay - stayed

1.1.1.2. study - studied

1.1.1.3. change - changed

1.1.1.4. stop - stopped

1.1.1.5. want - wanted

1.2. Irregular verbs

1.2.1. Change

1.2.1.1. run - ran

1.2.1.2. read - read

1.2.1.3. write - wrote

2. STRUCTURE

2.1. Affirmative form

2.1.1. Subject + past verb + complement

2.2. Negative form

2.2.1. Subject + auxiliary (did) not + present verb + complement

2.3. Interrogative form

2.3.1. Auxiliary (did) + Subject + present verb + complement + ?

2.3.1.1. Yes, subject + did

2.3.1.2. No, subject + didn´t

3. USE

3.1. 1. Started and finished in the past

3.2. 2. Actions in the past

3.3. 3. Regular actions in the past

3.4. 4. Long time in the past

3.5. 5. Happened in the past