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