I'll be collapsing you'll be collapsing he'll be collapsing we'll be collapsing you'll be collapsing they'll be collapsing
Future perfect
I'll have collapsed you'll have collapsed he'll have collapsed we'll have collapsed you'll have collapsed they'll have collapsed
Future perfect continuous
I'll have been collapsing you'll have been collapsing he'll have been collapsing we'll have been collapsing you'll have been collapsing they'll have been collapsing
I'd be collapsing you'd be collapsing he'd be collapsing we'd be collapsing you'd be collapsing they'd be collapsing
Past
I'd have collapsed you'd have collapsed he'd have collapsed we'd have collapsed you'd have collapsed they'd have collapsed
Past continuous
I'd have been collapsing you'd have been collapsing he'd have been collapsing we'd have been collapsing you'd have been collapsing they'd have been collapsing