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