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Anonymous Posted 15 years ago
Grammar

Difference between ...have been... and ...are...

Please help me understand the difference between the below two sentences.

1. In the first part of this review, important aspects of trajectory are discussed.

2. In the first part of this review, important aspects of trajectory have been discussed.
  

Top answer

The first one views the review as a present or future text; the second one views the review as a text written a short time ago. #1 would be expected to appear as a part of the review, at the beginning of the text, and #2 would appear as part of the review, at the end of the text.

  • The first one views the review as a present or future text; the second one views the review as a text written a short time ago.
  • #1 would be expected to appear as a part of the review, at the beginning of the text, and #2 would appear as part of the review, at the end of the text.
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1 Answers
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The first one views the review as a present or future text; the second one views the review as a text written a short time ago. #1 would be expected to appear as a part of the review, at the beginning of the text, and #2 would appear as part of the review, at the end of the text.

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