ought to know
Verbo irregular: know - knew- known

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought to know
you ought to know
he ought to know
we ought to know
you ought to know
they ought to know 	I ought to be knowing
you ought to be knowing
he ought to be knowing
we ought to be knowing
you ought to be knowing
they ought to be knowing	I ought to have known
you ought to have known
he ought to have known
we ought to have known
you ought to have known
they ought to have known	I ought to have been knowing
you ought to have been knowing
he ought to have been knowing
we ought to have been knowing
you ought to have been knowing
they ought to have been knowing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I oughtn't to know
you oughtn't to know
he oughtn't to know
we oughtn't to know
you oughtn't to know
they oughtn't to know 	I oughtn't to be knowing
you oughtn't to be knowing
he oughtn't to be knowing
we oughtn't to be knowing
you oughtn't to be knowing
they oughtn't to be knowing	I oughtn't to have known
you oughtn't to have known
he oughtn't to have known
we oughtn't to have known
you oughtn't to have known
they oughtn't to have known	I oughtn't to have been knowing
you oughtn't to have been knowing
he oughtn't to have been knowing
we oughtn't to have been knowing
you oughtn't to have been knowing
they oughtn't to have been knowing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought to I know?
ought to you know?
ought to he know?
ought to we know?
ought to you know?
ought to they know? 	ought to I be knowing?
ought to you be knowing?
ought to he be knowing?
ought to we be knowing?
ought to you be knowing?
ought to they be knowing? 	ought to I have known?
ought to you have known?
ought to he have known?
ought to we have known?
ought to you have known?
ought to they have known? 	ought to I have been knowing?
ought to you have been knowing?
ought to he have been knowing?
ought to we have been knowing?
ought to you have been knowing?
ought to they have been knowing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
oughtn't I to know?
oughtn't you to know?
oughtn't he to know?
oughtn't we to know?
oughtn't you to know?
oughtn't they to know? 	oughtn't I to be knowing?
oughtn't you to be knowing?
oughtn't he to be knowing?
oughtn't we to be knowing?
oughtn't you to be knowing?
oughtn't they to be knowing? 	oughtn't I to have known?
oughtn't you to have known?
oughtn't he to have known?
oughtn't we to have known?
oughtn't you to have known?
oughtn't they to have known? 	oughtn't I to have been knowing?
oughtn't you to have been knowing?
oughtn't he to have been knowing?
oughtn't we to have been knowing?
oughtn't you to have been knowing?
oughtn't they to have been knowing?