English verb conjugation
MUST DESIRE

Regular verb: desire - desired - desired

Affirmation

Simple form	V-ing form
I must desire you must desire he must desire we must desire you must desire they must desire	I must be desiring you must be desiring he 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 he 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 he 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 he 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 he 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 he 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 he 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 he desire? must we desire? must you desire? must they desire?	must I be desiring? must you be desiring? must he 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 he 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 he 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 he 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 he 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 he 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 he have been desiring? mustn't we have been desiring? mustn't you have been desiring? mustn't they have been desiring?