English verb conjugation
CAN DISPROVE

Regular verb: disprove - disproved - disproved

Affirmation

Simple form	V-ing form
I can disprove you can disprove he can disprove we can disprove you can disprove they can disprove	I can be disproving you can be disproving he can be disproving we can be disproving you can be disproving they can be disproving
Perfect	V-ing perfect
I can have disproved you can have disproved he can have disproved we can have disproved you can have disproved they can have disproved	I can have been disproving you can have been disproving he can have been disproving we can have been disproving you can have been disproving they can have been disproving

Negation

Simple form	V-ing form
I can't disprove you can't disprove he can't disprove we can't disprove you can't disprove they can't disprove	I can't be disproving you can't be disproving he can't be disproving we can't be disproving you can't be disproving they can't be disproving
Perfect	V-ing perfect
I can't have disproved you can't have disproved he can't have disproved we can't have disproved you can't have disproved they can't have disproved	I can't have been disproving you can't have been disproving he can't have been disproving we can't have been disproving you can't have been disproving they can't have been disproving

Interrogative form

Simple form	V-ing form
can I disprove? can you disprove? can he disprove? can we disprove? can you disprove? can they disprove?	can I be disproving? can you be disproving? can he be disproving? can we be disproving? can you be disproving? can they be disproving?
Perfect	V-ing perfect
can I have disproved? can you have disproved? can he have disproved? can we have disproved? can you have disproved? can they have disproved?	can I have been disproving? can you have been disproving? can he have been disproving? can we have been disproving? can you have been disproving? can they have been disproving?

Interro-negative form

Simple form	V-ing form
can't I disprove? can't you disprove? can't he disprove? can't we disprove? can't you disprove? can't they disprove?	can't I be disproving? can't you be disproving? can't he be disproving? can't we be disproving? can't you be disproving? can't they be disproving?
Perfect	V-ing perfect
can't I have disproved? can't you have disproved? can't he have disproved? can't we have disproved? can't you have disproved? can't they have disproved?	can't I have been disproving? can't you have been disproving? can't he have been disproving? can't we have been disproving? can't you have been disproving? can't they have been disproving?