must symbol
Verbo regular: symbol - symboled- symboled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must symbol
you must symbol
he must symbol
we must symbol
you must symbol
they must symbol 	I must be symboling
you must be symboling
he must be symboling
we must be symboling
you must be symboling
they must be symboling	I must have symboled
you must have symboled
he must have symboled
we must have symboled
you must have symboled
they must have symboled	I must have been symboling
you must have been symboling
he must have been symboling
we must have been symboling
you must have been symboling
they must have been symboling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't symbol
you mustn't symbol
he mustn't symbol
we mustn't symbol
you mustn't symbol
they mustn't symbol 	I mustn't be symboling
you mustn't be symboling
he mustn't be symboling
we mustn't be symboling
you mustn't be symboling
they mustn't be symboling	I mustn't have symboled
you mustn't have symboled
he mustn't have symboled
we mustn't have symboled
you mustn't have symboled
they mustn't have symboled	I mustn't have been symboling
you mustn't have been symboling
he mustn't have been symboling
we mustn't have been symboling
you mustn't have been symboling
they mustn't have been symboling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I symbol?
must you symbol?
must he symbol?
must we symbol?
must you symbol?
must they symbol? 	must I be symboling?
must you be symboling?
must he be symboling?
must we be symboling?
must you be symboling?
must they be symboling? 	must I have symboled?
must you have symboled?
must he have symboled?
must we have symboled?
must you have symboled?
must they have symboled? 	must I have been symboling?
must you have been symboling?
must he have been symboling?
must we have been symboling?
must you have been symboling?
must they have been symboling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I symbol?
mustn't you symbol?
mustn't he symbol?
mustn't we symbol?
mustn't you symbol?
mustn't they symbol? 	mustn't I be symboling?
mustn't you be symboling?
mustn't he be symboling?
mustn't we be symboling?
mustn't you be symboling?
mustn't they be symboling? 	mustn't I have symboled?
mustn't you have symboled?
mustn't he have symboled?
mustn't we have symboled?
mustn't you have symboled?
mustn't they have symboled? 	mustn't I have been symboling?
mustn't you have been symboling?
mustn't he have been symboling?
mustn't we have been symboling?
mustn't you have been symboling?
mustn't they have been symboling?