I've been systematizing you've been systematizing he's been systematizing we've been systematizing you've been systematizing they've been systematizing
I'll be systematizing you'll be systematizing he'll be systematizing we'll be systematizing you'll be systematizing they'll be systematizing
Future perfect
I'll have systematized you'll have systematized he'll have systematized we'll have systematized you'll have systematized they'll have systematized
Future perfect continuous
I'll have been systematizing you'll have been systematizing he'll have been systematizing we'll have been systematizing you'll have been systematizing they'll have been systematizing
I'd be systematizing you'd be systematizing he'd be systematizing we'd be systematizing you'd be systematizing they'd be systematizing
Past
I'd have systematized you'd have systematized he'd have systematized we'd have systematized you'd have systematized they'd have systematized
Past continuous
I'd have been systematizing you'd have been systematizing he'd have been systematizing we'd have been systematizing you'd have been systematizing they'd have been systematizing