The document discusses the past simple tense in English. It describes three main uses of the past simple tense: 1) to describe completed past actions, 2) to describe past habits or routines using "used to", and 3) in conditional clauses. It provides examples for each usage and covers the basic formation of the past simple tense, including adding "-ed" to regular verbs and listing some common irregular past forms.

1. PAST SIMPLE TENSE

2. USAGE
1. Describe the action or event that
happened in the past and completed
in the past (specific time)
Signal: last +year/month/week/night, yesterday, …ago, …

3. EXAMPLE
Last night, he
phoned home.

4. EXAMPLE
Yesterday, she listened to music.

5. USAGE
2. Describe the past habit or routine
I always exercised every
morning when I was a
student.

6. USAGE
2. Describe the past habit or routine
Use “used to” to describe habit or routine in the
past.
Eg: I used to exercise every morning.
She used to play organ.

7. USAGE
3. Use in conditional clauses(type 2)
Eg: If they were rich, they would help the
poor.

8. USAGE
In question after “when”
When did you buy that T-shirt?
When did she graduate high school?

9. FORM
S + Ved/V2 + O.
I walked to school yesterday.
I went to school yesterday.

10. Regular verb

11. How to add “ed”

12. How to add “ed”
Spy
Envy
Study

13. IRREGULAR VERB

14. PAST SIMPLE IN QUESTION
Did + S + V(bare-inf)… ?

15. PAST SIMPLE IN NEGATION
S + did + not + V(bare-inf)