English verb conjugation
CAN DESIRE

Regular verb: desire - desired - desired

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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