must blank
Verbo regular: blank - blanked- blanked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must blank
you must blank
he must blank
we must blank
you must blank
they must blank 	I must be blanking
you must be blanking
he must be blanking
we must be blanking
you must be blanking
they must be blanking	I must have blanked
you must have blanked
he must have blanked
we must have blanked
you must have blanked
they must have blanked	I must have been blanking
you must have been blanking
he must have been blanking
we must have been blanking
you must have been blanking
they must have been blanking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't blank
you mustn't blank
he mustn't blank
we mustn't blank
you mustn't blank
they mustn't blank 	I mustn't be blanking
you mustn't be blanking
he mustn't be blanking
we mustn't be blanking
you mustn't be blanking
they mustn't be blanking	I mustn't have blanked
you mustn't have blanked
he mustn't have blanked
we mustn't have blanked
you mustn't have blanked
they mustn't have blanked	I mustn't have been blanking
you mustn't have been blanking
he mustn't have been blanking
we mustn't have been blanking
you mustn't have been blanking
they mustn't have been blanking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I blank?
must you blank?
must he blank?
must we blank?
must you blank?
must they blank? 	must I be blanking?
must you be blanking?
must he be blanking?
must we be blanking?
must you be blanking?
must they be blanking? 	must I have blanked?
must you have blanked?
must he have blanked?
must we have blanked?
must you have blanked?
must they have blanked? 	must I have been blanking?
must you have been blanking?
must he have been blanking?
must we have been blanking?
must you have been blanking?
must they have been blanking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I blank?
mustn't you blank?
mustn't he blank?
mustn't we blank?
mustn't you blank?
mustn't they blank? 	mustn't I be blanking?
mustn't you be blanking?
mustn't he be blanking?
mustn't we be blanking?
mustn't you be blanking?
mustn't they be blanking? 	mustn't I have blanked?
mustn't you have blanked?
mustn't he have blanked?
mustn't we have blanked?
mustn't you have blanked?
mustn't they have blanked? 	mustn't I have been blanking?
mustn't you have been blanking?
mustn't he have been blanking?
mustn't we have been blanking?
mustn't you have been blanking?
mustn't they have been blanking?