I
would have overengineered
you
would have overengineered
he / she / it
would have overengineered
we
would have overengineered
you
would have overengineered
they
would have overengineered
I
would have been overengineering
you
would have been overengineering
he / she / it
would have been overengineering
we
would have been overengineering
you
would have been overengineering
they
would have been overengineering