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