can any 1 tell me the structure of the of the following tenses...
1. present perfect continuous
2.past perfect continuous
3.future perfect continuous

i got exams 2mrw... plzz help...
 

The structure of the present perfect continuous tense is:

subject+auxiliary verb+auxiliary verb+main verb
  have
has

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The structure of the past perfect continuous tense is:

subject+auxiliary verb HAVE+auxiliary verb BE+main verb
 conjugated in simple past tense past participle present participle
hadbeenbase + ing

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The structure of the future perfect continuous tense is:

subject+auxiliary verb WILL+auxiliary verb HAVE+auxiliary verb BE+main verb
 invariable invariable past participle present participle
willhavebeenbase + ing

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thumbs up please

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  • past perfect continuous- subject+ had been+ first form of verb + ing + object
  • future perfect continuous- subject+ will/ would / shall/ should + have been+ first form of verb + ing+ object
  • present perfect continuous-subject + has/have+been + first form of verb +ing+ object
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thumbs up plzzz

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 thank u all... :)

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 another question.... is since and for used with perfect continuous tenses...???

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