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
she must restack
we must restack
you must restack
they must restack 	I must be restacking
you must be restacking
she must be restacking
we must be restacking
you must be restacking
they must be restacking	I must have restacked
you must have restacked
she 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
she 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 must not restack
you must not restack
she must not restack
we must not restack
you must not restack
they must not restack 	I must not be restacking
you must not be restacking
she must not be restacking
we must not be restacking
you must not be restacking
they must not be restacking	I must not have restacked
you must not have restacked
she must not have restacked
we must not have restacked
you must not have restacked
they must not have restacked	I must not have been restacking
you must not have been restacking
she must not have been restacking
we must not have been restacking
you must not have been restacking
they must not have been restacking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I restack?
must you restack?
must she restack?
must we restack?
must you restack?
must they restack? 	must I be restacking?
must you be restacking?
must she be restacking?
must we be restacking?
must you be restacking?
must they be restacking? 	must I have restacked?
must you have restacked?
must she 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 she 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 	
must I not restack?
must you not restack?
must she not restack?
must we not restack?
must you not restack?
must they not restack? 	must I not be restacking?
must you not be restacking?
must she not be restacking?
must we not be restacking?
must you not be restacking?
must they not be restacking? 	must I not have restacked?
must you not have restacked?
must she not have restacked?
must we not have restacked?
must you not have restacked?
must they not have restacked? 	must I not have been restacking?
must you not have been restacking?
must she not have been restacking?
must we not have been restacking?
must you not have been restacking?
must they not have been restacking?