ought to prove
Verbo irregular: prove - proved- proven

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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	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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought not to prove
you ought not to prove
he ought not to prove
we ought not to prove
you ought not to prove
they ought not to prove 	I ought not to proving
you ought not to proving
he ought not to proving
we ought not to proving
you ought not to proving
they ought not to proving	I ought not to have proven
you ought not to have proven
he ought not to have proven
we ought not to have proven
you ought not to have proven
they ought not to have proven	I ought not to have been proving
you ought not to have been proving
he ought not to have been proving
we ought not to have been proving
you ought not to have been proving
they ought not to have been proving	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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? 	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? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought I not to prove?
ought you not to prove?
ought he not to prove?
ought we not to prove?
ought you not to prove?
ought they not to prove? 	ought I not to be proving?
ought you not to be proving?
ought he not to be proving?
ought we not to be proving?
ought you not to be proving?
ought they not to be proving? 	ought I not to have proven?
ought you not to have proven?
ought he not to have proven?
ought we not to have proven?
ought you not to have proven?
ought they not to have proven? 	ought I not to have been proving?
ought you not to have been proving?
ought he not to have been proving?
ought we not to have been proving?
ought you not to have been proving?
ought they not to have been proving?