I must diffuse you must diffuse he must diffuse we must diffuse you must diffuse they must diffuse
Forma com V-ing
I must be diffusing you must be diffusing he must be diffusing we must be diffusing you must be diffusing they must be diffusing
Perfeito
I must have diffused you must have diffused he must have diffused we must have diffused you must have diffused they must have diffused
Perfeito com V-ing
I must have been diffusing you must have been diffusing he must have been diffusing we must have been diffusing you must have been diffusing they must have been diffusing
Negação
Forma simple
I mustn't diffuse you mustn't diffuse he mustn't diffuse we mustn't diffuse you mustn't diffuse they mustn't diffuse
Forma com V-ing
I mustn't be diffusing you mustn't be diffusing he mustn't be diffusing we mustn't be diffusing you mustn't be diffusing they mustn't be diffusing
Perfeito
I mustn't have diffused you mustn't have diffused he mustn't have diffused we mustn't have diffused you mustn't have diffused they mustn't have diffused
Perfeito com V-ing
I mustn't have been diffusing you mustn't have been diffusing he mustn't have been diffusing we mustn't have been diffusing you mustn't have been diffusing they mustn't have been diffusing
Forma interrogativa
Forma simple
must I diffuse? must you diffuse? must he diffuse? must we diffuse? must you diffuse? must they diffuse?
Forma com V-ing
must I be diffusing? must you be diffusing? must he be diffusing? must we be diffusing? must you be diffusing? must they be diffusing?
Perfeito
must I have diffused? must you have diffused? must he have diffused? must we have diffused? must you have diffused? must they have diffused?
Perfeito com V-ing
must I have been diffusing? must you have been diffusing? must he have been diffusing? must we have been diffusing? must you have been diffusing? must they have been diffusing?
Forma interro-Negação
Forma simple
mustn't I diffuse? mustn't you diffuse? mustn't he diffuse? mustn't we diffuse? mustn't you diffuse? mustn't they diffuse?
Forma com V-ing
mustn't I be diffusing? mustn't you be diffusing? mustn't he be diffusing? mustn't we be diffusing? mustn't you be diffusing? mustn't they be diffusing?
Perfeito
mustn't I have diffused? mustn't you have diffused? mustn't he have diffused? mustn't we have diffused? mustn't you have diffused? mustn't they have diffused?
Perfeito com V-ing
mustn't I have been diffusing? mustn't you have been diffusing? mustn't he have been diffusing? mustn't we have been diffusing? mustn't you have been diffusing? mustn't they have been diffusing?