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hello! my grammer presentation is about 'didn't have to' vs 'needn't have done'. ı have difficulty in finding appropriate text which will help to teach these points in a context and an effective productive activity. could you please provide me some resource about this modal presentation?
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Wrong spelling of
grammar!
Needn't have done is a pretty obscure grammar point, and comparing it to 'didn't have to' is already making my head spin. Anyway, both are past forms, so you could use the context of giving feedback to an employee on something he has just completed.