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