Whether and if within the same sentence.


Hi guys,

Could anyone please help me with this? Is it a correct form? (it is about town planning).

Such an investigation into the times and causes of a lengthy planning process allows to understand whether TDR practices are the main reasons at the basis of the unexpected delay or if their impact is limited to the implementation stage.

Thanks a lot.

  • entangledbank

    Senior Member
    English - South-East England
    Yes, that's fine. In both those positions either word could be used. Some people might prefer that, as a matter of style, they should be the same; but it could also be stylistically useful to vary the wording. There is no grammatical problem with using both words like that.