In AMBA AHB, is hgrnat must be low after 1st clock cycle of an ERROR response?

Hi,

In AMBA AHB:-

     For two clock cycle SPLIT or RETRY response, hgrant must be low after 1st clock cycle of SPLIT or RETRY response.

   q)  For two clock cycle ERROR response, is it mandatory of hgrant must be low after 1st clock cycle of ERROR response?

   q) May i know the state(low/high) of hgrant signal in two clock cycle response?

   q) If i want to continue the remaining transfers after receiving ERROR response of a burst, is it necessary to rebuild the transaction or not?

   q) with out of rebuild transaction, is it possible to continue the transfers w.r.to ERROR response?