I'll be purifying you'll be purifying he'll be purifying we'll be purifying you'll be purifying they'll be purifying
Future perfect
I'll have purified you'll have purified he'll have purified we'll have purified you'll have purified they'll have purified
Future perfect continuous
I'll have been purifying you'll have been purifying he'll have been purifying we'll have been purifying you'll have been purifying they'll have been purifying
I'd be purifying you'd be purifying he'd be purifying we'd be purifying you'd be purifying they'd be purifying
Past
I'd have purified you'd have purified he'd have purified we'd have purified you'd have purified they'd have purified
Past continuous
I'd have been purifying you'd have been purifying he'd have been purifying we'd have been purifying you'd have been purifying they'd have been purifying