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this could be a useful key vs this can be a useful key

Both phrases are correct and commonly used in English. They are interchangeable and convey the same meaning. The choice between 'could' and 'can' depends on the context and the level of certainty or possibility the speaker wants to express.

Last updated: March 17, 2024 • 601 views

this could be a useful key

This phrase is correct and commonly used in English.

This phrase is used to express a possibility or uncertainty about the usefulness of the key. 'Could' implies a lower level of certainty compared to 'can'.

Examples:

  • This could be a useful key to unlock the mystery.
  • This could be a useful key to understanding the problem.

Alternatives:

  • this might be a useful key
  • this may be a useful key
  • this is possibly a useful key
  • this is potentially a useful key
  • this seems like a useful key

this can be a useful key

This phrase is correct and commonly used in English.

This phrase is used to express a possibility or certainty about the usefulness of the key. 'Can' implies a higher level of certainty compared to 'could'.

Examples:

  • This can be a useful key to solving the problem.
  • This can be a useful key to achieving success.
  • If your company concentrates on a particular area more, this can be a useful key point that serves in enhancing your mobile marketing campaign. 3. Make Use Of  ...
  • This can be a useful key to help Katie improve her hand position. This task can also teach Katie how to open her upper body and stretch without hollowing her ...

Alternatives:

  • this is a useful key
  • this may be a useful key
  • this might be a useful key
  • this is likely a useful key
  • this is probably a useful key

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