I'll be untwisting you'll be untwisting he'll be untwisting we'll be untwisting you'll be untwisting they'll be untwisting
Future perfect
I'll have untwisted you'll have untwisted he'll have untwisted we'll have untwisted you'll have untwisted they'll have untwisted
Future perfect continuous
I'll have been untwisting you'll have been untwisting he'll have been untwisting we'll have been untwisting you'll have been untwisting they'll have been untwisting
I'd be untwisting you'd be untwisting he'd be untwisting we'd be untwisting you'd be untwisting they'd be untwisting
Past
I'd have untwisted you'd have untwisted he'd have untwisted we'd have untwisted you'd have untwisted they'd have untwisted
Past continuous
I'd have been untwisting you'd have been untwisting he'd have been untwisting we'd have been untwisting you'd have been untwisting they'd have been untwisting