Sentence Correction (SC) | Re: A recent article in The New York Times

pulkitaggi , what I'm getting at with past perfect is that simply having a sequence isn't enough to require the use of past perfect. There needs to be a clear reason to build that sequence into the sentence. In the supercollider example, it's a bit different. Since the scientist is assessing the cost of the supercolliderup to that point , past perfect makes sense. In fact, if we wanted to emphasize that the supercollider will continue to cost nothing, we'd probably shift into simple present: "The