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Hello, teachers

Mr @David, Moderator and Mr @Gustavo, Co-Moderator

Is it OK to use either "mustn't" or "needn't" in such a context?

Writing this report is not important. You[ mustn't _ needn't ] bother yourself.

I came across some sentences using "mustn't / needn't worry". I think "bother" has the same meamustn't bothermustn't worryneedn't botherning and can be used the same way with both modal verbs.

I know "mustn't" refers to something that is prohibited / negative obligation. However, "needn't" refers to "lack of necessity". Yet, Can't we use "mustn't" for "strong advice" as is mentioned in some sentences.



Images (3)
  • mustn't bother
  • mustn't worry
  • needn't bother
Last edited by ayman
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