If there were only one mode of givenness for consciousness,then if I could experience a past moment at all, it could only beexperienced as past if it were explicitly accompanied by a seconditem, a label alongside it which says, "this one is past," atemporal 'sign.' This indeed is what Brentano seemed to say, atleast as Husserl interprets him.
This error is based on another dogma, which we might call the dogma of content: the differences between a past, present and future moment must appear as a difference in the contents of our experience. The prejudice is related to Hume's notion that all we are ever given are isolated, unstructured impressions.
If Hume were correct, then the only way a past impression could be distinguished from a present one is by being associated with a second impression, the impression of "pastness."