Tenses i.e. Present ,Past and Future have their different uses connecting with the four forms. In English, as per (Affirmative, Negative, Interrogative, Interrogative Negative) sentences, the following are the uses of different tenses:
PAST TENSE
Past tense is refers to the past time of the verbs. It is classified in to four forms:
1.Simple Past or Past Indefinite
2.Past continuous or Past Progressive
3.Past Perfect
4.Past Perfect Continuous / Progressive
Structure
4. PAST PERFECT CONTINUOUS TENSE
4.1. Structure of Affirmative sentences:
[ Subject + had been + v-IV +....+ since or for +.... ]
e.g.
I had been playing the game since three p.m.
We had been finishing our work.
He has been participating in the competition.
She had been writing an essay for two hours.
You had been climbing up the tree.
They had been going to the market.
Hari had been writing the copy since 10 p.m.
4.2. Structure of Negative sentences :
[ Subject + had + not + been + v-IV+... +since / for +.... ]
e.g.
I had not been playing the game.
We had not been finishing our work.
He had not been participating in the competition.
She had not been writing an essay.
You had not been climbing up the tree.
They had not been going to the market.
Suni had not been singing for one hours.
4.3. Structure of Interrogative sentences:
[ Had + Subject +been+ v-IV +....+since / for +....? ]
e.g.
Had I been playing the game?
Had we been finishing our work?
Had he been participating in the competition?
Had she been writing an essay?
Had you been climbing up the tree?
Had they been going to the market?
Had Rita been writing the letter?
4.4.Structure of Interrogative Negative sentences:
[ Had + Subject + not +been+ v-IV +.... since / for +....? ]
or
[ Hadn't + Subject + been+ v-IV +....since / for +.....? ]
e.g.
Hadn't I been playing the game?
Had I not been playing the game?
Hadn't we been finishing our work?
Had we not been finishing our work?
Hadn't he been participating in the competition?
Had he not been participating in the competition?
Hadn't she been writing an essay since 2 p.m. ?
Had She not been writing an essay since 2 p.m.?
Hadn't you been climbing up the tree for two hours?
Had you not been climbing up the tree for two hours?
Hadn't they been going to the market?
Had they not been going to the market?
Hadn't Rita been writing the letter for one hours?
Had Rita not been writing the letter for one hours?
Uses of Past perfect continuous tense :
USES OF PAST PERFECT CONTINUOUS TENSE :
Past perfect continuous tense is also called past perfect ProgressiveTense. See the following points and examples to know more about it.
1. When the action began before the time of speaking in the past, and continued to that time:
e.g.
I had been writing since two hours.
She had been dancing for one hours.
Suka had been playing for an hour.
They had been climbing the mountain since morning.
2. To describe a repeated action in the past :
e.g.
She had been selling this goods for many years.
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