ought to raven
Regular verb: raven - ravened- ravened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to raven
you ought to raven
he ought to raven
we ought to raven
you ought to raven
they ought to raven 	I ought to be ravening
you ought to be ravening
he ought to be ravening
we ought to be ravening
you ought to be ravening
they ought to be ravening	I ought to have ravened
you ought to have ravened
he ought to have ravened
we ought to have ravened
you ought to have ravened
they ought to have ravened	I ought to have been ravening
you ought to have been ravening
he ought to have been ravening
we ought to have been ravening
you ought to have been ravening
they ought to have been ravening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to raven
you oughtn't to raven
he oughtn't to raven
we oughtn't to raven
you oughtn't to raven
they oughtn't to raven 	I oughtn't to be ravening
you oughtn't to be ravening
he oughtn't to be ravening
we oughtn't to be ravening
you oughtn't to be ravening
they oughtn't to be ravening	I oughtn't to have ravened
you oughtn't to have ravened
he oughtn't to have ravened
we oughtn't to have ravened
you oughtn't to have ravened
they oughtn't to have ravened	I oughtn't to have been ravening
you oughtn't to have been ravening
he oughtn't to have been ravening
we oughtn't to have been ravening
you oughtn't to have been ravening
they oughtn't to have been ravening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I raven?
ought to you raven?
ought to he raven?
ought to we raven?
ought to you raven?
ought to they raven? 	ought to I be ravening?
ought to you be ravening?
ought to he be ravening?
ought to we be ravening?
ought to you be ravening?
ought to they be ravening? 	ought to I have ravened?
ought to you have ravened?
ought to he have ravened?
ought to we have ravened?
ought to you have ravened?
ought to they have ravened? 	ought to I have been ravening?
ought to you have been ravening?
ought to he have been ravening?
ought to we have been ravening?
ought to you have been ravening?
ought to they have been ravening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to raven?
oughtn't you to raven?
oughtn't he to raven?
oughtn't we to raven?
oughtn't you to raven?
oughtn't they to raven? 	oughtn't I to be ravening?
oughtn't you to be ravening?
oughtn't he to be ravening?
oughtn't we to be ravening?
oughtn't you to be ravening?
oughtn't they to be ravening? 	oughtn't I to have ravened?
oughtn't you to have ravened?
oughtn't he to have ravened?
oughtn't we to have ravened?
oughtn't you to have ravened?
oughtn't they to have ravened? 	oughtn't I to have been ravening?
oughtn't you to have been ravening?
oughtn't he to have been ravening?
oughtn't we to have been ravening?
oughtn't you to have been ravening?
oughtn't they to have been ravening?