should disprove
Regular verb: disprove - disproved- disproved

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not disprove
you should not disprove
he should not disprove
we should not disprove
you should not disprove
they should not disprove 	I should not be disproving
you should not be disproving
he should not be disproving
we should not be disproving
you should not be disproving
they should not be disproving	I should not have disproved
you should not have disproved
he should not have disproved
we should not have disproved
you should not have disproved
they should not have disproved	I should not have been disproving
you should not have been disproving
he should not have been disproving
we should not have been disproving
you should not have been disproving
they should not have been disproving	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not disprove?
should you not disprove?
should he not disprove?
should we not disprove?
should you not disprove?
should they not disprove? 	should I not be disproving?
should you not be disproving?
should he not be disproving?
should we not be disproving?
should you not be disproving?
should they not be disproving? 	should I not have disproved?
should you not have disproved?
should he not have disproved?
should we not have disproved?
should you not have disproved?
should they not have disproved? 	should I not have been disproving?
should you not have been disproving?
should he not have been disproving?
should we not have been disproving?
should you not have been disproving?
should they not have been disproving?