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 must not destain
you must not destain
he must not destain
we must not destain
you must not destain
they must not destain 	I must not be destaining
you must not be destaining
he must not be destaining
we must not be destaining
you must not be destaining
they must not be destaining	I must not have destained
you must not have destained
he must not have destained
we must not have destained
you must not have destained
they must not have destained	I must not have been destaining
you must not have been destaining
he must not have been destaining
we must not have been destaining
you must not have been destaining
they must not 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 	
must I not destain?
must you not destain?
must he not destain?
must we not destain?
must you not destain?
must they not destain? 	must I not be destaining?
must you not be destaining?
must he not be destaining?
must we not be destaining?
must you not be destaining?
must they not be destaining? 	must I not have destained?
must you not have destained?
must he not have destained?
must we not have destained?
must you not have destained?
must they not have destained? 	must I not have been destaining?
must you not have been destaining?
must he not have been destaining?
must we not have been destaining?
must you not have been destaining?
must they not have been destaining?