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"I must not help them." vs "I mustn't help them."

Both phrases are correct and have the same meaning. They are interchangeable and can be used in formal or informal contexts.

Last Updated: March 27, 2024

I must not help them.

This phrase is correct and commonly used in English.

This phrase is a correct way to express the idea of not being obligated to help someone.

Alternatives:

  • I mustn't help them.
  • I am not allowed to help them.
  • I should refrain from helping them.
  • I have no obligation to help them.
  • I need not help them.

I mustn't help them.

This phrase is correct and commonly used in English.

This phrase is a correct contraction of 'must not' and is commonly used in spoken and written English.

Alternatives:

  • I must not help them.
  • I am not allowed to help them.
  • I should refrain from helping them.
  • I have no obligation to help them.
  • I need not help them.

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