In a certain debating chamber, it is routinely stated: "There have voted - [such-and-such]: content; [such-and-such]: not content." "Content" means a yes vote. I'm not sure that this is grammatically correct. I think you can only have "been" or "not been" after "there have" at the start of a sentence. Could someone educate me as to why this is grammatical, or if it isn't, why they choose to repeatedly use an ungrammatical construction?