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