I must diffract you must diffract he must diffract we must diffract you must diffract they must diffract
Forme en V-ing
I must be diffracting you must be diffracting he must be diffracting we must be diffracting you must be diffracting they must be diffracting
Perfect
I must have diffracted you must have diffracted he must have diffracted we must have diffracted you must have diffracted they must have diffracted
Perfect en V-ing
I must have been diffracting you must have been diffracting he must have been diffracting we must have been diffracting you must have been diffracting they must have been diffracting
Négation
Forme simple
I mustn't diffract you mustn't diffract he mustn't diffract we mustn't diffract you mustn't diffract they mustn't diffract
Forme en V-ing
I mustn't be diffracting you mustn't be diffracting he mustn't be diffracting we mustn't be diffracting you mustn't be diffracting they mustn't be diffracting
Perfect
I mustn't have diffracted you mustn't have diffracted he mustn't have diffracted we mustn't have diffracted you mustn't have diffracted they mustn't have diffracted
Perfect en V-ing
I mustn't have been diffracting you mustn't have been diffracting he mustn't have been diffracting we mustn't have been diffracting you mustn't have been diffracting they mustn't have been diffracting
Forme interrogative
Forme simple
must I diffract? must you diffract? must he diffract? must we diffract? must you diffract? must they diffract?
Forme en V-ing
must I be diffracting? must you be diffracting? must he be diffracting? must we be diffracting? must you be diffracting? must they be diffracting?
Perfect
must I have diffracted? must you have diffracted? must he have diffracted? must we have diffracted? must you have diffracted? must they have diffracted?
Perfect en V-ing
must I have been diffracting? must you have been diffracting? must he have been diffracting? must we have been diffracting? must you have been diffracting? must they have been diffracting?
Forme interro-négative
Forme simple
mustn't I diffract? mustn't you diffract? mustn't he diffract? mustn't we diffract? mustn't you diffract? mustn't they diffract?
Forme en V-ing
mustn't I be diffracting? mustn't you be diffracting? mustn't he be diffracting? mustn't we be diffracting? mustn't you be diffracting? mustn't they be diffracting?
Perfect
mustn't I have diffracted? mustn't you have diffracted? mustn't he have diffracted? mustn't we have diffracted? mustn't you have diffracted? mustn't they have diffracted?
Perfect en V-ing
mustn't I have been diffracting? mustn't you have been diffracting? mustn't he have been diffracting? mustn't we have been diffracting? mustn't you have been diffracting? mustn't they have been diffracting?