English verb conjugation
MUST DESIRE

Regular verb: desire - desired - desired

Affirmation

Simple form	V-ing form
I must desire you must desire she must desire we must desire you must desire they must desire	I must be desiring you must be desiring she must be desiring we must be desiring you must be desiring they must be desiring
Perfect	V-ing perfect
I must have desired you must have desired she must have desired we must have desired you must have desired they must have desired	I must have been desiring you must have been desiring she must have been desiring we must have been desiring you must have been desiring they must have been desiring

Negation

Simple form	V-ing form
I mustn't desire you mustn't desire she mustn't desire we mustn't desire you mustn't desire they mustn't desire	I mustn't be desiring you mustn't be desiring she mustn't be desiring we mustn't be desiring you mustn't be desiring they mustn't be desiring
Perfect	V-ing perfect
I mustn't have desired you mustn't have desired she mustn't have desired we mustn't have desired you mustn't have desired they mustn't have desired	I mustn't have been desiring you mustn't have been desiring she mustn't have been desiring we mustn't have been desiring you mustn't have been desiring they mustn't have been desiring

Interrogative form

Simple form	V-ing form
must I desire? must you desire? must she desire? must we desire? must you desire? must they desire?	must I be desiring? must you be desiring? must she be desiring? must we be desiring? must you be desiring? must they be desiring?
Perfect	V-ing perfect
must I have desired? must you have desired? must she have desired? must we have desired? must you have desired? must they have desired?	must I have been desiring? must you have been desiring? must she have been desiring? must we have been desiring? must you have been desiring? must they have been desiring?

Interro-negative form

Simple form	V-ing form
mustn't I desire? mustn't you desire? mustn't she desire? mustn't we desire? mustn't you desire? mustn't they desire?	mustn't I be desiring? mustn't you be desiring? mustn't she be desiring? mustn't we be desiring? mustn't you be desiring? mustn't they be desiring?
Perfect	V-ing perfect
mustn't I have desired? mustn't you have desired? mustn't she have desired? mustn't we have desired? mustn't you have desired? mustn't they have desired?	mustn't I have been desiring? mustn't you have been desiring? mustn't she have been desiring? mustn't we have been desiring? mustn't you have been desiring? mustn't they have been desiring?