English verb conjugation
MUST DESCANT

Regular verb: descant - descanted - descanted

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
I mustn't descant you mustn't descant he mustn't descant we mustn't descant you mustn't descant they mustn't descant	I mustn't be descanting you mustn't be descanting he mustn't be descanting we mustn't be descanting you mustn't be descanting they mustn't be descanting
Perfect	V-ing perfect
I mustn't have descanted you mustn't have descanted he mustn't have descanted we mustn't have descanted you mustn't have descanted they mustn't have descanted	I mustn't have been descanting you mustn't have been descanting he mustn't have been descanting we mustn't have been descanting you mustn't have been descanting they mustn't have been descanting

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
mustn't I descant? mustn't you descant? mustn't he descant? mustn't we descant? mustn't you descant? mustn't they descant?	mustn't I be descanting? mustn't you be descanting? mustn't he be descanting? mustn't we be descanting? mustn't you be descanting? mustn't they be descanting?
Perfect	V-ing perfect
mustn't I have descanted? mustn't you have descanted? mustn't he have descanted? mustn't we have descanted? mustn't you have descanted? mustn't they have descanted?	mustn't I have been descanting? mustn't you have been descanting? mustn't he have been descanting? mustn't we have been descanting? mustn't you have been descanting? mustn't they have been descanting?