PAST TENSE

1. Simple Past Tense is a kind of tense which is used to describe an event or action that happened already in a certain time in the past
The pattern :
(+) Subject + verb II + complement
(-) Subject + did not + verb II + complement
(?) Did + subject + verb I
The examples :
(+) I went to Tangkiling yesterday
(-) I did not go anywhere last night
(?) Did you go last week?
Adverbs used :yesterday, last night, last week, two days ago, e few minutes ago, last weekend, last month,last year, in 1984, etc.

2. Past Continuous Tense is a kind of tense that is used to describe an event or an action which was happening in a certain time in the past
The pattern :
(+) Subject + was/were +verb-ing+ complement
(-) Subject + was not/were not+verb-ing+ complement
(?) was/were+ subject + verb-ing+complement
The examples :
(+) He was writing a letter at eight o’clock last night
(-) He was not writing a letter at seven o’clock last night
(?) Were you writing a letter at eight last night?

adverbs used :
at the time like this yesterday, at seven o’clock last night, etc.

3. Past Perfect Tense is a kind of tense that is used to describe an action or an event that started in a certain time in the past and completed or finished till in a certain time in the past too; or past perfect tense is used to express an action or an event that had happened before the other event or action happened

The pattern :
(+) Subject + had+verb III+cmplement
(-) Subject + had not+ver III+complement
(?) Had + subject +verb III+complement
examples :
(+) We had eaten before they came
(-) They had not eaten before we came
(?) Had they eaten before we got back?
Adverbs used :
from 1998 to 1999, once, twice, etc.