I've been demonstrating you've been demonstrating he's been demonstrating we've been demonstrating you've been demonstrating they've been demonstrating
I'll be demonstrating you'll be demonstrating he'll be demonstrating we'll be demonstrating you'll be demonstrating they'll be demonstrating
Futuro perfecto
I'll have demonstrated you'll have demonstrated he'll have demonstrated we'll have demonstrated you'll have demonstrated they'll have demonstrated
Futuro perfecto contínuo
I'll have been demonstrating you'll have been demonstrating he'll have been demonstrating we'll have been demonstrating you'll have been demonstrating they'll have been demonstrating
I'd be demonstrating you'd be demonstrating he'd be demonstrating we'd be demonstrating you'd be demonstrating they'd be demonstrating
Passado
I'd have demonstrated you'd have demonstrated he'd have demonstrated we'd have demonstrated you'd have demonstrated they'd have demonstrated
Passado continuo
I'd have been demonstrating you'd have been demonstrating he'd have been demonstrating we'd have been demonstrating you'd have been demonstrating they'd have been demonstrating