I'll be quivering you'll be quivering he'll be quivering we'll be quivering you'll be quivering they'll be quivering
Futuro perfecto
I'll have quivered you'll have quivered he'll have quivered we'll have quivered you'll have quivered they'll have quivered
Futuro perfecto contínuo
I'll have been quivering you'll have been quivering he'll have been quivering we'll have been quivering you'll have been quivering they'll have been quivering
I'd be quivering you'd be quivering he'd be quivering we'd be quivering you'd be quivering they'd be quivering
Passado
I'd have quivered you'd have quivered he'd have quivered we'd have quivered you'd have quivered they'd have quivered
Passado continuo
I'd have been quivering you'd have been quivering he'd have been quivering we'd have been quivering you'd have been quivering they'd have been quivering