The document discusses the use of the simple past tense in English. It explains that the simple past is used to talk about actions that happened at a specific time in the past or actions that happened repeatedly in the past. It provides examples of time expressions that are used with the simple past tense, such as "yesterday" or "last year." It also describes how regular verbs are made past tense by adding "-ed" and how irregular verb forms must be memorized. The formation of negative and interrogative sentences in the simple past is demonstrated using example sentences.

1. The Simple Past Tense
She was at her classroom.

2. WHEN WE USE PAST SIMPLE:
 To talk about actions that happened at a specific
time in the past. You use a time expression.
(yesterday, last Mont.)
 It can be used to describe events that happened
over a period of time in the past.
 It is also used to talk about habitual or repeated
actions that took place in the past.

3. TIME EXPRESSIONS
Yesterday, last week, last month, last year,
last time, … ago, in 1994,etc.
We cooked sushi 2 years
ago.

4. PAST SIMPLE TENSE: REGULAR
VERBS
Affirmative:
The past tense of regular verbs is formed by adding –d
or –ed to the verb.
I worked hard in my English
class.

5. REGULAR VERBS
 We add -ed at the end of the verb:
Talk → talked
- If the verb ends in “e”, we only add -d:
Live → lived
- When the verb ends in vowel + consonant we
double the last consonant:
Stop → stopped
- When the verb ends in consonant + y, we
change the “y” and add -ied:
Study → studied

6. IRREGULAR VERBS
Affirmative:
Irregular past verb forms must be learned because
they don’t follow any rule:
Go went
Come came
Buy bought
Drink drank
Eat ate
Find found
See saw I went to El Tajín last Summer
holidays.

7. REGULAR AND IRREGULAR VERBS
Negative:
Use did not or didn’t + bare infinitive to
make the past simple tense negative.
I didn’t play football last week.
I didn’t cook the dinner last
night.

8. REGULAR AND IRREGULAR VERBS
Interrogative:
We use did + subject + a bare infinitive of the
verb to make the past simple interrogative.
- Did you go on holidays last
summer?
- - Did you take any
Language course the last
semester?