Here are some Google search results. I found it surprising that the first form is the most common (I'd have thought the second): >"What is that to do with" -> *About 323,000,000 results*. > >"What does that have to do with" -> *About 28,000,000 results*. > >"What has that got to do with" -> *About 2,700,000 results*. > >"What has that to do with" -> *About 1,530,000 results*.