I must flight-test you must flight-test he must flight-test we must flight-test you must flight-test they must flight-test
Forme en V-ing
I must be flight-testing you must be flight-testing he must be flight-testing we must be flight-testing you must be flight-testing they must be flight-testing
Perfect
I must have flight-tested you must have flight-tested he must have flight-tested we must have flight-tested you must have flight-tested they must have flight-tested
Perfect en V-ing
I must have been flight-testing you must have been flight-testing he must have been flight-testing we must have been flight-testing you must have been flight-testing they must have been flight-testing
Négation
Forme simple
I mustn't flight-test you mustn't flight-test he mustn't flight-test we mustn't flight-test you mustn't flight-test they mustn't flight-test
Forme en V-ing
I mustn't be flight-testing you mustn't be flight-testing he mustn't be flight-testing we mustn't be flight-testing you mustn't be flight-testing they mustn't be flight-testing
Perfect
I mustn't have flight-tested you mustn't have flight-tested he mustn't have flight-tested we mustn't have flight-tested you mustn't have flight-tested they mustn't have flight-tested
Perfect en V-ing
I mustn't have been flight-testing you mustn't have been flight-testing he mustn't have been flight-testing we mustn't have been flight-testing you mustn't have been flight-testing they mustn't have been flight-testing
Forme interrogative
Forme simple
must I flight-test? must you flight-test? must he flight-test? must we flight-test? must you flight-test? must they flight-test?
Forme en V-ing
must I be flight-testing? must you be flight-testing? must he be flight-testing? must we be flight-testing? must you be flight-testing? must they be flight-testing?
Perfect
must I have flight-tested? must you have flight-tested? must he have flight-tested? must we have flight-tested? must you have flight-tested? must they have flight-tested?
Perfect en V-ing
must I have been flight-testing? must you have been flight-testing? must he have been flight-testing? must we have been flight-testing? must you have been flight-testing? must they have been flight-testing?
Forme interro-négative
Forme simple
mustn't I flight-test? mustn't you flight-test? mustn't he flight-test? mustn't we flight-test? mustn't you flight-test? mustn't they flight-test?
Forme en V-ing
mustn't I be flight-testing? mustn't you be flight-testing? mustn't he be flight-testing? mustn't we be flight-testing? mustn't you be flight-testing? mustn't they be flight-testing?
Perfect
mustn't I have flight-tested? mustn't you have flight-tested? mustn't he have flight-tested? mustn't we have flight-tested? mustn't you have flight-tested? mustn't they have flight-tested?
Perfect en V-ing
mustn't I have been flight-testing? mustn't you have been flight-testing? mustn't he have been flight-testing? mustn't we have been flight-testing? mustn't you have been flight-testing? mustn't they have been flight-testing?