Is the Past Perfect or the Future Perfect?

There's an exact perfect mirror image e past, perfect tense. I'm not saying that the past and the future are perfectly alike in every respect. For instance, en, i think there's a modil a symmetry betweentem isomthing is an epistemological, a symmetry between tem i know things about the past, like that it rained to day,. So there obvieusly a symmetries between the past andthe future. And i do think that interms of tendencies the past andThe future are the same. Theyare symmetrical with each other. But i'm not saying some weird metaphysical thing like the past and The Future both in time,