I'll be presuming you'll be presuming he'll be presuming we'll be presuming you'll be presuming they'll be presuming
Future perfect
I'll have presumed you'll have presumed he'll have presumed we'll have presumed you'll have presumed they'll have presumed
Future perfect continuous
I'll have been presuming you'll have been presuming he'll have been presuming we'll have been presuming you'll have been presuming they'll have been presuming
I'd be presuming you'd be presuming he'd be presuming we'd be presuming you'd be presuming they'd be presuming
Past
I'd have presumed you'd have presumed he'd have presumed we'd have presumed you'd have presumed they'd have presumed
Past continuous
I'd have been presuming you'd have been presuming he'd have been presuming we'd have been presuming you'd have been presuming they'd have been presuming