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