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Beatgmat Posted 16 years ago
Grammar

About Tenses :

"The widely accepted big bang theory holds that the universe began in an explosive instant ten to twenty billion years ago and has been expanding ever since."

Shouldnt the tenses in a single sentenece remain the same?
Otherwise in what situation we can change the tenses in a single sentence?

Can I write "I played football yesterday and I will go to school tomorrow."?
  

Top answer

" Shouldnt the tenses in a single sentenece remain the same? No, there is no such requirement. Otherwise in what situation we can change the tenses in a single sentence?

  • " Shouldnt the tenses in a single sentenece remain the same?
  • No, there is no such requirement.
  • Otherwise in what situation we can change the tenses in a single sentence?
  • Any sentence, as long as what you are saying makes sense.
  • "?
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6 Answers
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Hi,

"The widely accepted big bang theory holds that the universe began in an explosive instant ten to twenty billion years ago and has been expanding ever since."

Shouldnt the tenses in a single sentenece remain the same? No, there is no such requirement.

Otherwise in what situation we can change the tenses in a single sentence? Any sentence, as long as w
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beatgmat"The widely accepted big bang theory holds that the universe began in an explosive instant ten to twenty billion years ago and has been expanding ever since."
This is a variant of a very typical pattern with since, in which a process has been continuing since an event occurred in the past.

The universe has been expanding s
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Thanks so much for the additional information! Emotion: smile
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Hi Clive,

Can you please explain , whats wrong in writing " The widely accepted big bang theory holds that the universe had begun in an explosive instant ten to twenty billion years ago and had been expanding ever since " . This i believe is correct as had begun is referring to an incident ( explosion ) that had happened in the past before the theory was accepted and it h
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Oops! I was going to offer an answer but suddenly I notice it's addressed specifically to Clive.

CJ

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