I'll be crumbling you'll be crumbling he'll be crumbling we'll be crumbling you'll be crumbling they'll be crumbling
Futuro anteriore
I'll have crumbled you'll have crumbled he'll have crumbled we'll have crumbled you'll have crumbled they'll have crumbled
Futuro anteriore contínuo
I'll have been crumbling you'll have been crumbling he'll have been crumbling we'll have been crumbling you'll have been crumbling they'll have been crumbling
I'd be crumbling you'd be crumbling he'd be crumbling we'd be crumbling you'd be crumbling they'd be crumbling
Passato
I'd have crumbled you'd have crumbled he'd have crumbled we'd have crumbled you'd have crumbled they'd have crumbled
Passato continuo
I'd have been crumbling you'd have been crumbling he'd have been crumbling we'd have been crumbling you'd have been crumbling they'd have been crumbling