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Supercat Posted 10 years ago
Grammar

The choice of a preposition?

X is purified by the method Y.

Why the prep "by"? 

a) It's done by the method called Y, so you must use"by".
b) The verb "purify" takes the prep "by".
c) Don't you confuse or wonder if you should use any of by, with, or using?
  

Top answer

"With" is not a good choice. "Using" is the best one. "The" is not good as the sentence is provided.

  • "With" is not a good choice.
  • "Using" is the best one.
  • "The" is not good as the sentence is provided.
  • X is purified by the Y method.
  • X is purified using the Y method.
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2 Answers
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"With" is not a good choice. "Using" is the best one.

"The" is not good as the sentence is provided.

X is purified by the Y method.
X is purified using the Y method.

We have the preposition "by," which starts the prepositional phrase "by the method Y." It is an adverbial prepostional phrase. This prepositional phrase indicates manner (or how), which is rather typic
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Englishmaven"With" is not a good choice. "Using" is the best one.
Good to know that you choose any like this way

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