I'll be backstroking you'll be backstroking he'll be backstroking we'll be backstroking you'll be backstroking they'll be backstroking
Future perfect
I'll have backstroked you'll have backstroked he'll have backstroked we'll have backstroked you'll have backstroked they'll have backstroked
Future perfect continuous
I'll have been backstroking you'll have been backstroking he'll have been backstroking we'll have been backstroking you'll have been backstroking they'll have been backstroking
I'd be backstroking you'd be backstroking he'd be backstroking we'd be backstroking you'd be backstroking they'd be backstroking
Past
I'd have backstroked you'd have backstroked he'd have backstroked we'd have backstroked you'd have backstroked they'd have backstroked
Past continuous
I'd have been backstroking you'd have been backstroking he'd have been backstroking we'd have been backstroking you'd have been backstroking they'd have been backstroking