English verb conjugation
CAN PROVE

Irregular verb: prove - proved - proven

Affirmation

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

Negation

Simple form	V-ing form
I cannot prove you cannot prove he cannot prove we cannot prove you cannot prove they cannot prove	I cannot be proving you cannot be proving he cannot be proving we cannot be proving you cannot be proving they cannot be proving
Perfect	V-ing perfect
I cannot have proven you cannot have proven he cannot have proven we cannot have proven you cannot have proven they cannot have proven	I cannot have been proving you cannot have been proving he cannot have been proving we cannot have been proving you cannot have been proving they cannot have been proving

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can I not prove? can you not prove? can he not prove? can we not prove? can you not prove? can they not prove?	can I not be proving? can you not be proving? can he not be proving? can we not be proving? can you not be proving? can they not be proving?
Perfect	V-ing perfect
can I not have proven? can you not have proven? can he not have proven? can we not have proven? can you not have proven? can they not have proven?	can I not have been proving? can you not have been proving? can he not have been proving? can we not have been proving? can you not have been proving? can they not have been proving?