I
would have cross-referred
you
would have cross-referred
he / she / it
would have cross-referred
we
would have cross-referred
you
would have cross-referred
they
would have cross-referred
I
would have been cross-referring
you
would have been cross-referring
he / she / it
would have been cross-referring
we
would have been cross-referring
you
would have been cross-referring
they
would have been cross-referring