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