I must bull you must bull he must bull we must bull you must bull they must bull
Forma con V-ing
I must be bulling you must be bulling he must be bulling we must be bulling you must be bulling they must be bulling
Perfecto
I must have bulled you must have bulled he must have bulled we must have bulled you must have bulled they must have bulled
Perfecto con V-ing
I must have been bulling you must have been bulling he must have been bulling we must have been bulling you must have been bulling they must have been bulling
Negación
Forma simple
I mustn't bull you mustn't bull he mustn't bull we mustn't bull you mustn't bull they mustn't bull
Forma con V-ing
I mustn't be bulling you mustn't be bulling he mustn't be bulling we mustn't be bulling you mustn't be bulling they mustn't be bulling
Perfecto
I mustn't have bulled you mustn't have bulled he mustn't have bulled we mustn't have bulled you mustn't have bulled they mustn't have bulled
Perfecto con V-ing
I mustn't have been bulling you mustn't have been bulling he mustn't have been bulling we mustn't have been bulling you mustn't have been bulling they mustn't have been bulling
Forma interrogativa
Forma simple
must I bull? must you bull? must he bull? must we bull? must you bull? must they bull?
Forma con V-ing
must I be bulling? must you be bulling? must he be bulling? must we be bulling? must you be bulling? must they be bulling?
Perfecto
must I have bulled? must you have bulled? must he have bulled? must we have bulled? must you have bulled? must they have bulled?
Perfecto con V-ing
must I have been bulling? must you have been bulling? must he have been bulling? must we have been bulling? must you have been bulling? must they have been bulling?
Forma interro-negativa
Forma simple
mustn't I bull? mustn't you bull? mustn't he bull? mustn't we bull? mustn't you bull? mustn't they bull?
Forma con V-ing
mustn't I be bulling? mustn't you be bulling? mustn't he be bulling? mustn't we be bulling? mustn't you be bulling? mustn't they be bulling?
Perfecto
mustn't I have bulled? mustn't you have bulled? mustn't he have bulled? mustn't we have bulled? mustn't you have bulled? mustn't they have bulled?
Perfecto con V-ing
mustn't I have been bulling? mustn't you have been bulling? mustn't he have been bulling? mustn't we have been bulling? mustn't you have been bulling? mustn't they have been bulling?