ought to know
Verbo irregolare: know - knew- known

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I ought to know
you ought to know
she 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
she 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
she 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
she ought to have been knowing
we ought to have been knowing
you ought to have been knowing
they ought to have been knowing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I oughtn't to know
you oughtn't to know
she 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
she 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
she 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
she 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 semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
ought to I know?
ought to you know?
ought to she 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 she 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 she 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 she 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 semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
oughtn't I to know?
oughtn't you to know?
oughtn't she 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 she 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 she 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 she 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?