PAST SIMPLE
regular verbs: -ed
irregular verbs: study here
Affirmative
She worked in London last year
I bought some food yesterday
Negative
I didn´t work in London last year
I didn´t buy any food yesterday
Questions
Where did you work last year?
Did you buy any food yesterday?
You can practise here
PAST CONTINUOUS
was (I, he, she, it)
were (you, we, they)
was / were + Verb -ing
1.Action in progress at a specific moment
Susan was studying at 6.30
2.Interrupted actions: - the longer action: continuous
- the shorter action: simple
We were playing when it started to rain
While she was studying, the telephone rang
You can practise here