I
would have sledgehammered
you
would have sledgehammered
he / she / it
would have sledgehammered
we
would have sledgehammered
you
would have sledgehammered
they
would have sledgehammered
I
would have been sledgehammering
you
would have been sledgehammering
he / she / it
would have been sledgehammering
we
would have been sledgehammering
you
would have been sledgehammering
they
would have been sledgehammering