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