must destain
Verbe régulier : destain - destained- destained

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must destain
you must destain
he must destain
we must destain
you must destain
they must destain 	I must be destaining
you must be destaining
he must be destaining
we must be destaining
you must be destaining
they must be destaining	I must have destained
you must have destained
he must have destained
we must have destained
you must have destained
they must have destained	I must have been destaining
you must have been destaining
he must have been destaining
we must have been destaining
you must have been destaining
they must have been destaining	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't destain
you mustn't destain
he mustn't destain
we mustn't destain
you mustn't destain
they mustn't destain 	I mustn't be destaining
you mustn't be destaining
he mustn't be destaining
we mustn't be destaining
you mustn't be destaining
they mustn't be destaining	I mustn't have destained
you mustn't have destained
he mustn't have destained
we mustn't have destained
you mustn't have destained
they mustn't have destained	I mustn't have been destaining
you mustn't have been destaining
he mustn't have been destaining
we mustn't have been destaining
you mustn't have been destaining
they mustn't have been destaining	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I destain?
must you destain?
must he destain?
must we destain?
must you destain?
must they destain? 	must I be destaining?
must you be destaining?
must he be destaining?
must we be destaining?
must you be destaining?
must they be destaining? 	must I have destained?
must you have destained?
must he have destained?
must we have destained?
must you have destained?
must they have destained? 	must I have been destaining?
must you have been destaining?
must he have been destaining?
must we have been destaining?
must you have been destaining?
must they have been destaining? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I destain?
mustn't you destain?
mustn't he destain?
mustn't we destain?
mustn't you destain?
mustn't they destain? 	mustn't I be destaining?
mustn't you be destaining?
mustn't he be destaining?
mustn't we be destaining?
mustn't you be destaining?
mustn't they be destaining? 	mustn't I have destained?
mustn't you have destained?
mustn't he have destained?
mustn't we have destained?
mustn't you have destained?
mustn't they have destained? 	mustn't I have been destaining?
mustn't you have been destaining?
mustn't he have been destaining?
mustn't we have been destaining?
mustn't you have been destaining?
mustn't they have been destaining?