As you will have noticed, there are some gaps in the date.
你已经注意到数据有缺漏。
如果把主句改成过去式there were,其它不变,这句话对不对?
这是will的推测性用法,这样讲可以讲得通,当然也有可能是将来。
As you will have noticed, there were some gaps in the date.
也行。
你应该已经注意到数据曾经有缺漏。