I'll be euthanizing you'll be euthanizing he'll be euthanizing we'll be euthanizing you'll be euthanizing they'll be euthanizing
Future perfect
I'll have euthanized you'll have euthanized he'll have euthanized we'll have euthanized you'll have euthanized they'll have euthanized
Future perfect continuous
I'll have been euthanizing you'll have been euthanizing he'll have been euthanizing we'll have been euthanizing you'll have been euthanizing they'll have been euthanizing
I'd be euthanizing you'd be euthanizing he'd be euthanizing we'd be euthanizing you'd be euthanizing they'd be euthanizing
Past
I'd have euthanized you'd have euthanized he'd have euthanized we'd have euthanized you'd have euthanized they'd have euthanized
Past continuous
I'd have been euthanizing you'd have been euthanizing he'd have been euthanizing we'd have been euthanizing you'd have been euthanizing they'd have been euthanizing