Past tense is used to indicate the activity in the past. Furthermore, simple past is used for retelling successive events. So, it is commonly used in a story telling.
The formula of Simple Past Tense :
a. Without Verb :
(+) S + to be (was/were) + Obj. / Compliment
(-) S + to be (was/were) + not + Obj. / Compliment
(?) To be (was/were) + S + Obj. / Compliment + ?
Example : (+) I was at home last night
(-) I was not at home last night
(?) Was I at home last night?
b. With Verb :
(+) S + V2 + Compliment
(-) S + did + not + V1 + Compliment
(?) Did + S + V1 + Compliment + ?
Example : (+) I called him last night.
(-) I did not call him last night.
(?) Did I call him last night?
Time Signal of Simple Past Tense :
¯ Yesterday
¯ Yesterday afternoon
¯ Last night
¯ Last month
¯ Last week
¯ Last year
¯ An hour ago
¯ In 1978
