English verb conjugation
OUGHT TO PROVE

Irregular verb: prove - proved - proven

Affirmation

Simple form	V-ing form
I ought to prove you ought to prove he ought to prove we ought to prove you ought to prove they ought to prove	I ought to be proving you ought to be proving he ought to be proving we ought to be proving you ought to be proving they ought to be proving
Perfect	V-ing perfect
I ought to have proven you ought to have proven he ought to have proven we ought to have proven you ought to have proven they ought to have proven	I ought to have been proving you ought to have been proving he ought to have been proving we ought to have been proving you ought to have been proving they ought to have been proving

Negation

Simple form	V-ing form
I oughtn't to prove you oughtn't to prove he oughtn't to prove we oughtn't to prove you oughtn't to prove they oughtn't to prove	I oughtn't to be proving you oughtn't to be proving he oughtn't to be proving we oughtn't to be proving you oughtn't to be proving they oughtn't to be proving
Perfect	V-ing perfect
I oughtn't to have proven you oughtn't to have proven he oughtn't to have proven we oughtn't to have proven you oughtn't to have proven they oughtn't to have proven	I oughtn't to have been proving you oughtn't to have been proving he oughtn't to have been proving we oughtn't to have been proving you oughtn't to have been proving they oughtn't to have been proving

Interrogative form

Simple form	V-ing form
ought to I prove? ought to you prove? ought to he prove? ought to we prove? ought to you prove? ought to they prove?	ought to I be proving? ought to you be proving? ought to he be proving? ought to we be proving? ought to you be proving? ought to they be proving?
Perfect	V-ing perfect
ought to I have proven? ought to you have proven? ought to he have proven? ought to we have proven? ought to you have proven? ought to they have proven?	ought to I have been proving? ought to you have been proving? ought to he have been proving? ought to we have been proving? ought to you have been proving? ought to they have been proving?

Interro-negative form

Simple form	V-ing form
oughtn't I to prove? oughtn't you to prove? oughtn't he to prove? oughtn't we to prove? oughtn't you to prove? oughtn't they to prove?	oughtn't I to be proving? oughtn't you to be proving? oughtn't he to be proving? oughtn't we to be proving? oughtn't you to be proving? oughtn't they to be proving?
Perfect	V-ing perfect
oughtn't I to have proven? oughtn't you to have proven? oughtn't he to have proven? oughtn't we to have proven? oughtn't you to have proven? oughtn't they to have proven?	oughtn't I to have been proving? oughtn't you to have been proving? oughtn't he to have been proving? oughtn't we to have been proving? oughtn't you to have been proving? oughtn't they to have been proving?