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Supercat Posted 9 years ago
Grammar

Could Not Have vs Could Not Be?

There were difficult (software) programs that were impossible with old system.
But Software MM is so good it can run the programs.

Software MM can run difficult programs that could not have been achieved by using old system.
Or is it "could not be achieved"?

  

Top answer

I assume Software MM is the name of a computer operating system. You don't 'achieve' a program. Software MM can run difficult programs that could not be run by the old system.

  • I assume Software MM is the name of a computer operating system.
  • You don't 'achieve' a program.
  • Software MM can run difficult programs that could not be run by the old system.
  • This suggests you actually tried to run them under the old system.
  • Software MM can run difficult programs that could not have been run by the old system.
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2 Answers
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I assume Software MM is the name of a computer operating system.

You don't 'achieve' a program.


Software MM can run difficult programs that could not be run by the old system. This suggests you actually tried to run them under the old system.

Software MM can run difficult programs that could not have been run by the old s

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SupercatThere were difficult (software) programs that were impossible with old system.

That makes no sense.

SupercatBut Software MM is so good it can run the programs.

That implies that Software MM is an operating system.

SupercatSoftware MM can run difficult programs that could not ha

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