must understock
Verbe régulier : understock - understocked- understocked

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must understock
you must understock
he must understock
we must understock
you must understock
they must understock 	I must be understocking
you must be understocking
he must be understocking
we must be understocking
you must be understocking
they must be understocking	I must have understocked
you must have understocked
he must have understocked
we must have understocked
you must have understocked
they must have understocked	I must have been understocking
you must have been understocking
he must have been understocking
we must have been understocking
you must have been understocking
they must have been understocking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't understock
you mustn't understock
he mustn't understock
we mustn't understock
you mustn't understock
they mustn't understock 	I mustn't be understocking
you mustn't be understocking
he mustn't be understocking
we mustn't be understocking
you mustn't be understocking
they mustn't be understocking	I mustn't have understocked
you mustn't have understocked
he mustn't have understocked
we mustn't have understocked
you mustn't have understocked
they mustn't have understocked	I mustn't have been understocking
you mustn't have been understocking
he mustn't have been understocking
we mustn't have been understocking
you mustn't have been understocking
they mustn't have been understocking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I understock?
must you understock?
must he understock?
must we understock?
must you understock?
must they understock? 	must I be understocking?
must you be understocking?
must he be understocking?
must we be understocking?
must you be understocking?
must they be understocking? 	must I have understocked?
must you have understocked?
must he have understocked?
must we have understocked?
must you have understocked?
must they have understocked? 	must I have been understocking?
must you have been understocking?
must he have been understocking?
must we have been understocking?
must you have been understocking?
must they have been understocking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I understock?
mustn't you understock?
mustn't he understock?
mustn't we understock?
mustn't you understock?
mustn't they understock? 	mustn't I be understocking?
mustn't you be understocking?
mustn't he be understocking?
mustn't we be understocking?
mustn't you be understocking?
mustn't they be understocking? 	mustn't I have understocked?
mustn't you have understocked?
mustn't he have understocked?
mustn't we have understocked?
mustn't you have understocked?
mustn't they have understocked? 	mustn't I have been understocking?
mustn't you have been understocking?
mustn't he have been understocking?
mustn't we have been understocking?
mustn't you have been understocking?
mustn't they have been understocking?