must restack
Verbe régulier : restack - restacked- restacked

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must restack
you must restack
he must restack
we must restack
you must restack
they must restack 	I must be restacking
you must be restacking
he must be restacking
we must be restacking
you must be restacking
they must be restacking	I must have restacked
you must have restacked
he must have restacked
we must have restacked
you must have restacked
they must have restacked	I must have been restacking
you must have been restacking
he must have been restacking
we must have been restacking
you must have been restacking
they must have been restacking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't restack
you mustn't restack
he mustn't restack
we mustn't restack
you mustn't restack
they mustn't restack 	I mustn't be restacking
you mustn't be restacking
he mustn't be restacking
we mustn't be restacking
you mustn't be restacking
they mustn't be restacking	I mustn't have restacked
you mustn't have restacked
he mustn't have restacked
we mustn't have restacked
you mustn't have restacked
they mustn't have restacked	I mustn't have been restacking
you mustn't have been restacking
he mustn't have been restacking
we mustn't have been restacking
you mustn't have been restacking
they mustn't have been restacking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I restack?
must you restack?
must he restack?
must we restack?
must you restack?
must they restack? 	must I be restacking?
must you be restacking?
must he be restacking?
must we be restacking?
must you be restacking?
must they be restacking? 	must I have restacked?
must you have restacked?
must he have restacked?
must we have restacked?
must you have restacked?
must they have restacked? 	must I have been restacking?
must you have been restacking?
must he have been restacking?
must we have been restacking?
must you have been restacking?
must they have been restacking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I restack?
mustn't you restack?
mustn't he restack?
mustn't we restack?
mustn't you restack?
mustn't they restack? 	mustn't I be restacking?
mustn't you be restacking?
mustn't he be restacking?
mustn't we be restacking?
mustn't you be restacking?
mustn't they be restacking? 	mustn't I have restacked?
mustn't you have restacked?
mustn't he have restacked?
mustn't we have restacked?
mustn't you have restacked?
mustn't they have restacked? 	mustn't I have been restacking?
mustn't you have been restacking?
mustn't he have been restacking?
mustn't we have been restacking?
mustn't you have been restacking?
mustn't they have been restacking?