In abstract to the research paper, there is a short description in the Past Tense. Then there follows a sentence in the Present Perfect. Is it correct?
Here is an example: A new module was designed, constructed and tested.The results were written down. And some other sentences in the Past Tense.
And then this sentence:
The investigation has been performed at the Institute for XXX Research.
Should it also be in the Past Tense "the investigation was performed" or Present Perfect is ok considering the fact that there are two paragraphs in the abstract: the first paragraph is in the Past Tense, and the second one, which consists of one sentence, is in the Present Perfect
Top answer
What do you think, guys?
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What do you think, guys?
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