Could anyone possibly simply tell me which of the following would be correct?
Tell her she needn't work tonight.
Tell her she doesn't need to work tonight.
Could anyone possibly simply tell me which of the following would be correct?
Tell her she needn't work tonight.
Tell her she doesn't need to work tonight.
They are both correct.
The first is somewhat old fashioned and sounds a bit too formal.
"Tell her she doesn't have to work tonight." works too.