must fool
Verbo regular: fool - fooled- fooled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must fool
you must fool
he must fool
we must fool
you must fool
they must fool 	I must be fooling
you must be fooling
he must be fooling
we must be fooling
you must be fooling
they must be fooling	I must have fooled
you must have fooled
he must have fooled
we must have fooled
you must have fooled
they must have fooled	I must have been fooling
you must have been fooling
he must have been fooling
we must have been fooling
you must have been fooling
they must have been fooling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't fool
you mustn't fool
he mustn't fool
we mustn't fool
you mustn't fool
they mustn't fool 	I mustn't be fooling
you mustn't be fooling
he mustn't be fooling
we mustn't be fooling
you mustn't be fooling
they mustn't be fooling	I mustn't have fooled
you mustn't have fooled
he mustn't have fooled
we mustn't have fooled
you mustn't have fooled
they mustn't have fooled	I mustn't have been fooling
you mustn't have been fooling
he mustn't have been fooling
we mustn't have been fooling
you mustn't have been fooling
they mustn't have been fooling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I fool?
must you fool?
must he fool?
must we fool?
must you fool?
must they fool? 	must I be fooling?
must you be fooling?
must he be fooling?
must we be fooling?
must you be fooling?
must they be fooling? 	must I have fooled?
must you have fooled?
must he have fooled?
must we have fooled?
must you have fooled?
must they have fooled? 	must I have been fooling?
must you have been fooling?
must he have been fooling?
must we have been fooling?
must you have been fooling?
must they have been fooling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I fool?
mustn't you fool?
mustn't he fool?
mustn't we fool?
mustn't you fool?
mustn't they fool? 	mustn't I be fooling?
mustn't you be fooling?
mustn't he be fooling?
mustn't we be fooling?
mustn't you be fooling?
mustn't they be fooling? 	mustn't I have fooled?
mustn't you have fooled?
mustn't he have fooled?
mustn't we have fooled?
mustn't you have fooled?
mustn't they have fooled? 	mustn't I have been fooling?
mustn't you have been fooling?
mustn't he have been fooling?
mustn't we have been fooling?
mustn't you have been fooling?
mustn't they have been fooling?