must fool
Verbe régulier : fool - fooled- fooled
Traduction française : duper - faire l'imbécile ou le pitre 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en 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	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not fool
you must not fool
he must not fool
we must not fool
you must not fool
they must not fool 	I must not be fooling
you must not be fooling
he must not be fooling
we must not be fooling
you must not be fooling
they must not be fooling	I must not have fooled
you must not have fooled
he must not have fooled
we must not have fooled
you must not have fooled
they must not have fooled	I must not have been fooling
you must not have been fooling
he must not have been fooling
we must not have been fooling
you must not have been fooling
they must not have been fooling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en 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? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not fool?
must you not fool?
must he not fool?
must we not fool?
must you not fool?
must they not fool? 	must I not be fooling?
must you not be fooling?
must he not be fooling?
must we not be fooling?
must you not be fooling?
must they not be fooling? 	must I not have fooled?
must you not have fooled?
must he not have fooled?
must we not have fooled?
must you not have fooled?
must they not have fooled? 	must I not have been fooling?
must you not have been fooling?
must he not have been fooling?
must we not have been fooling?
must you not have been fooling?
must they not have been fooling?