> I feel like I'm being gaslighted by half the people in this thread that are saying that "have been being watched" is a normal phrase.
I assure you the feeling is mutual :/. It really does sound perfectly normal to me. I can easily imagine e.g. Jonathan Creek saying exactly that.
For context, I was born and raised in Northern NJ with Jamaican parents, and have lived in Michigan for the past 10 years. I have never heard anyone use grammar like this.