must descant
Verbe régulier : descant - descanted- descanted
Traduction française : déchanter - discourir 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must descant
you must descant
he must descant
we must descant
you must descant
they must descant 	I must be descanting
you must be descanting
he must be descanting
we must be descanting
you must be descanting
they must be descanting	I must have descanted
you must have descanted
he must have descanted
we must have descanted
you must have descanted
they must have descanted	I must have been descanting
you must have been descanting
he must have been descanting
we must have been descanting
you must have been descanting
they must have been descanting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not descant
you must not descant
he must not descant
we must not descant
you must not descant
they must not descant 	I must not be descanting
you must not be descanting
he must not be descanting
we must not be descanting
you must not be descanting
they must not be descanting	I must not have descanted
you must not have descanted
he must not have descanted
we must not have descanted
you must not have descanted
they must not have descanted	I must not have been descanting
you must not have been descanting
he must not have been descanting
we must not have been descanting
you must not have been descanting
they must not have been descanting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I descant?
must you descant?
must he descant?
must we descant?
must you descant?
must they descant? 	must I be descanting?
must you be descanting?
must he be descanting?
must we be descanting?
must you be descanting?
must they be descanting? 	must I have descanted?
must you have descanted?
must he have descanted?
must we have descanted?
must you have descanted?
must they have descanted? 	must I have been descanting?
must you have been descanting?
must he have been descanting?
must we have been descanting?
must you have been descanting?
must they have been descanting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not descant?
must you not descant?
must he not descant?
must we not descant?
must you not descant?
must they not descant? 	must I not be descanting?
must you not be descanting?
must he not be descanting?
must we not be descanting?
must you not be descanting?
must they not be descanting? 	must I not have descanted?
must you not have descanted?
must he not have descanted?
must we not have descanted?
must you not have descanted?
must they not have descanted? 	must I not have been descanting?
must you not have been descanting?
must he not have been descanting?
must we not have been descanting?
must you not have been descanting?
must they not have been descanting?