The formula for the Past Continuous or Past Progressive Tense is:
Subject + (Was / Were) + (Verb1 + ing) + Object + Modifier
Example:
1. Bali Teak Farmers in rice crops were growing at 9 am yesterday. (The farmers in Bali Jati rice planting 9 am yesterday).
2. Some students were conducting research on plant vegetative propagations when I went to the Agronomy laboratory two days ago. (Some students are doing research on vegetative propagation of plants when I went to the lab. Agronmy two days ago).
3. Transpiration was starting to increase at 8 a.m. this morning. (Transpiration is beginning to increase at 8 this morning).
Use of Past Continuous Tense
1. Past Continuous Tense is used to denote events that are happening at a specific time in the past. In this case, the specification of time, usually expressed in hours (ie what time it happened).
Example:
1. My daughter was watching TV at eight o'clock last night. (My son was watching TV at 8 last night).
2. She was copying the materials at 10 o'clock this morning. (He was photocopied materials at 10 this morning).
3. I was discussing with my classmates Home at 2 pm last Friday. (I was discussing the English language with my friends my class 2 hours Friday afternoon before).
4. I was being busy at 8 o'clock yesterday morning. (I'm busy at 8 am yesterday).
5. They were being very happy at 9 o'clock last Saturday night. (They're very happy hour 9 nights last week).
2. Past Continuous Tense is used to denote activities that are happening or in progress in the past, is interrupted by other events. In this case, the formula is as follows:
Subject1 + when + simple past tense, past continuous + subject2
Subject1 + past continuous + when + subject2 + simple past tense
Note: Genesis / activities that interrupt expressed in past tense and serves as a description of time. If placed at the beginning of the sentence, insert a comma before the main clause.
Example:
1. When I came home, my daughter was watching TV. (When I got home, my daughter was watching TV).
2. When I called him last night, he was playing cards with his friends. (When I call him last night, he was playing cards with his friends).
3. When she screamed for help, we were chitchatting. (When she screamed for help, we're talking).
4. When someone broke into our house, we were sleeping. (Ktika someone enter / steal into our house, we're sleeping).
5. I held my breath when somebody was Behaving suspiciously in my backyard. (I held my breath when someone is behaving suspiciously in the back of my house).
3. Past Continuous Tense is also used to express the two events that occurred at the same time in the past. In this case, the following formula is usually used.
Subject1 + while + past continuous, past continuous + subject2
Subject1 + past continuous + while + past continuous + subject2
Example:
1. While I was typing this note, my family was watching TV in the family room. (While I'm typing this note, my family was watching TV in the living room).
2. While the president was giving his speech, the audience was listening to him carefully. (While the president's speech, viewers / audience was listening carefully).
3. Male students were playing around while female ones were chitchatting. (Disciples of men playing while female students are talking).
4. My roommate was snoring loudly while I was studying. (My roommate was snoring loudly while I was studying).
5. We were smoking while we were drinking. (We're smoking while we were drinking).
Negative Form for Past Continuous Tense
Negative form of the sentences in Past Continuous Tense is made by adding 'not' after several were / was, as seen in the following formula:
Subject + (was / were) + not + (verb1 + ing) + object + modifier
Example:
1. My daughter was not watching TV at eight o'clock last night. (My son was not watching TV at 8 last night).
2. She was not copying the materials at 10 o'clock this morning. (He was not being photocopied materials at 10 this morning).
3. I was not discussing Indonesia with my classmates at 2 pm last Friday. (I am not discussing English with my friends my class 2 hours Friday afternoon before).
4. I was not being busy at 8 o'clock yesterday morning. (I'm not busy at 8 am yesterday).
5. They were not being very happy at 9 o'clock last Saturday night. (They're not very happy at 9 pm last week).
6. When I came home, my daughter was not watching TV. (When I got home, my daughter was not watching TV).
7. When I called him last night, he was not playing cards with his friends. (When I call him last night, he was not playing cards with his friends).
8. When she screamed for help, we were not chitchatting. (When she screamed for help, we're talking).
9. Someone broke into our house when we were not sleeping. (Someone enter / steal into our house when we were not sleeping).
10. I breathed well when somebody was not Behaving suspiciously in my backyard. (I breathed relief when someone does not behave suspiciously behind my house).
11. While I was not typing this note, we were watching TV in the family room. (While I'm typing this note, we were watching TV in the living room).
12. While the president was giving his speech, the audience was not listening to him carefully. (While the president's speech, viewers / audience was not listening closely).
13. Male students were not playing around while female ones were chitchatting. (Disciples of men are not playing while female students are talking).
14. My roommate was not snoring loudly while I was studying. (My roommate was not snoring loudly while I was studying).
15. We were not smoking while we were not drinking. (We're not smoking while we were not drinking).
Note: NOT can be contracted with in front of him became: was not and weren't. However, the use of contractions is considered slightly less formal.
Yes / No Questions for Past Continuous Tense
Form of Yes / No Questions for Past Continuous Tense follow the following formula:
(Was / were) + subject + (verb1 + ing) + object + modifier?
Example:
1. Was your daughter watching TV at eight o'clock last night? (Do putrid you're watching TV at 8 last night?).
2. Was she copying the materials at 10 o'clock this morning? (Is he being photocopied materials at 10 this morning?).
3. Were you discussing Home with your classmates at 2 pm last Friday? (What you were discussing the English language with your class friends at 2 pm on Friday?).
4. Were you being busy at 8 o'clock yesterday morning? (Are you busy at 8 AM yesterday?).
5. Were they being very happy at 9 o'clock last Saturday night? (Whether they were very happy at 9 nights last week?). And so on.
Modifier of time for the Past Continuous Tense
From the examples above sentences we can see that the modifier of time (concerning time) for the sentences in the past continuous tense is the form advervial phrases, ie:
1. at + hours + last night / two days ago / yesterday morning, and so on. For example: at eight o'clock last night, at 10 this morning, and so on.
2. when + simple past tense. For example: when I came home, when I called him last night, and so on.
3. while + past continuous tense. For example: while I was typing this note, while we were drinking, and so on.