I must survey you must survey she must survey we must survey you must survey they must survey
Forma con V-ing
I must be surveying you must be surveying she must be surveying we must be surveying you must be surveying they must be surveying
Perfetto
I must have surveyed you must have surveyed she must have surveyed we must have surveyed you must have surveyed they must have surveyed
Perfetto con V-ing
I must have been surveying you must have been surveying she must have been surveying we must have been surveying you must have been surveying they must have been surveying
Negazione
Forma semplice
I must not survey you must not survey she must not survey we must not survey you must not survey they must not survey
Forma con V-ing
I must not be surveying you must not be surveying she must not be surveying we must not be surveying you must not be surveying they must not be surveying
Perfetto
I must not have surveyed you must not have surveyed she must not have surveyed we must not have surveyed you must not have surveyed they must not have surveyed
Perfetto con V-ing
I must not have been surveying you must not have been surveying she must not have been surveying we must not have been surveying you must not have been surveying they must not have been surveying
Forma interrogativa
Forma semplice
must I survey? must you survey? must she survey? must we survey? must you survey? must they survey?
Forma con V-ing
must I be surveying? must you be surveying? must she be surveying? must we be surveying? must you be surveying? must they be surveying?
Perfetto
must I have surveyed? must you have surveyed? must she have surveyed? must we have surveyed? must you have surveyed? must they have surveyed?
Perfetto con V-ing
must I have been surveying? must you have been surveying? must she have been surveying? must we have been surveying? must you have been surveying? must they have been surveying?
Forma interro-negativa
Forma semplice
must I not survey? must you not survey? must she not survey? must we not survey? must you not survey? must they not survey?
Forma con V-ing
must I not be surveying? must you not be surveying? must she not be surveying? must we not be surveying? must you not be surveying? must they not be surveying?
Perfetto
must I not have surveyed? must you not have surveyed? must she not have surveyed? must we not have surveyed? must you not have surveyed? must they not have surveyed?
Perfetto con V-ing
must I not have been surveying? must you not have been surveying? must she not have been surveying? must we not have been surveying? must you not have been surveying? must they not have been surveying?