Past perfect vs. Past perfect progressive tense
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 Lesson 255 Past perfect vs. Past perfect progressive tense
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When I arrived at the station, the train had already left. = ମୁଁ ଯେତେବେଳେ ସ୍ଟେଶନ୍ ପହଞ୍ଚିଲା ବେଳକୁ ଟ୍ରେନ୍ ଛାଡି ସାରିଥିଲା.
We use past perfect tense to show that an action has already happened before another action in the past.
Action 1: The train left. Action 2: I arrived at the station.
For the main action (action 2) we use the simple past tense.
For the earlier action (action 1) we use the simple past perfect tense or past perfect progressive tense.

Past perfect tense is used if 'action 1' was fully complete.
When I arrived at the station, the train had already been whistling for 2 minutes. = ମୁଁ ଯେତେବେଳେ ସ୍ଟେଶନ୍ ପହଞ୍ଚିଲୀ, ଟ୍ରେନ୍ ଦୁଇ ମିନିଟ୍ ହେଲା ସିଟି ମାରୁଥିଲା.
Past perfect progressive is used if 'action 1' was going on till the instant that 'action 2' happened. It focuses on the duration of the action (action 1).
ଉପଯୁକ୍ତ ଶବ୍ଦ ଚୟନ କରି ଶୁନ୍ୟ ସ୍ଥାନ ପୁରଣ କରନ୍ତୁ
On September 1st, a tsunami in the Indian ocean killed five men who had ______
 been sitting
 sat
 sitted
ଉପଯୁକ୍ତ ଶବ୍ଦ ର ଚୟନ କରି ଶୁନ୍ୟ ସ୍ଥାନ ପୁରଣ କରନ୍ତୁ
She ______
ଟିପ୍
The waves had been hitting the shore since last night before the tsunami came. = ଗତ କାଲି ଠାରୁ, ସୁନାମୀ ଆସିବା ଆଗରୁ ଲହଡି କୁଳ ରେ ପିଟି ହେଉଥିଲା.
We use the past perfect progressive to talk about a longer earlier action that had been in progress up to a later past time. Past perfect Progressive focuses on the duration of the earlier unfinished action.
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I'm sorry I left without you last night, but I told you to meet me early because the show started at 8:00. I had been trying to get tickets for that play for months, and I didn't want to miss it.
By the time I finally left the coffee shop where we were supposed to meet, I had had five cups of coffee and I had been waiting over an hour. I had to leave because I had arranged to meet Charu in front of the theater.
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Notice the tenses in the underlined phrases. Wherever, duration of the past action has been specified, the past perfect progressive tense has been used.
In other cases, when the previous action has already been completed, then, simple past perfect tense has been used.
ଉପଯୁକ୍ତ ଶବ୍ଦ ର ଚୟନ କରି ଶୁନ୍ୟ ସ୍ଥାନ ପୁରଣ କରନ୍ତୁ
 been thinking
 been thought
 been think
ଉପଯୁକ୍ତ ଶବ୍ଦ ର ଚୟନ କରି ଶୁନ୍ୟ ସ୍ଥାନ ପୁରଣ କରନ୍ତୁ
A lot of smoke came in because I ______
 have forgotten
ଉପଯୁକ୍ତ ଶବ୍ଦ ର ଚୟନ କରି ଶୁନ୍ୟ ସ୍ଥାନ ପୁରଣ କରନ୍ତୁ
The same Tsunami reached Bengal four hours later, after it ______
ଉପଯୁକ୍ତ ଶବ୍ଦ ର ଚୟନ କରି ଶୁନ୍ୟ ସ୍ଥାନ ପୁରଣ କରନ୍ତୁ
It reached Bengal 4 hours later, after it had traveled 3,620 kilometers. This means that it ______
ଉପଯୁକ୍ତ ଶବ୍ଦ ର ଚୟନ କରି ଶୁନ୍ୟ ସ୍ଥାନ ପୁରଣ କରନ୍ତୁ
When the wave got to Bengal, it ______
 have reached
ଉପଯୁକ୍ତ ଶବ୍ଦ ର ଚୟନ କରି ଶୁନ୍ୟ ସ୍ଥାନ ପୁରଣ କରନ୍ତୁ
By the time it left Bengal, the tsunami ______
 has killed
 kill