ought to richen
Regular verb: richen - richened- richened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to richen
you ought to richen
he ought to richen
we ought to richen
you ought to richen
they ought to richen 	I ought to be richening
you ought to be richening
he ought to be richening
we ought to be richening
you ought to be richening
they ought to be richening	I ought to have richened
you ought to have richened
he ought to have richened
we ought to have richened
you ought to have richened
they ought to have richened	I ought to have been richening
you ought to have been richening
he ought to have been richening
we ought to have been richening
you ought to have been richening
they ought to have been richening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to richen
you oughtn't to richen
he oughtn't to richen
we oughtn't to richen
you oughtn't to richen
they oughtn't to richen 	I oughtn't to be richening
you oughtn't to be richening
he oughtn't to be richening
we oughtn't to be richening
you oughtn't to be richening
they oughtn't to be richening	I oughtn't to have richened
you oughtn't to have richened
he oughtn't to have richened
we oughtn't to have richened
you oughtn't to have richened
they oughtn't to have richened	I oughtn't to have been richening
you oughtn't to have been richening
he oughtn't to have been richening
we oughtn't to have been richening
you oughtn't to have been richening
they oughtn't to have been richening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I richen?
ought to you richen?
ought to he richen?
ought to we richen?
ought to you richen?
ought to they richen? 	ought to I be richening?
ought to you be richening?
ought to he be richening?
ought to we be richening?
ought to you be richening?
ought to they be richening? 	ought to I have richened?
ought to you have richened?
ought to he have richened?
ought to we have richened?
ought to you have richened?
ought to they have richened? 	ought to I have been richening?
ought to you have been richening?
ought to he have been richening?
ought to we have been richening?
ought to you have been richening?
ought to they have been richening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to richen?
oughtn't you to richen?
oughtn't he to richen?
oughtn't we to richen?
oughtn't you to richen?
oughtn't they to richen? 	oughtn't I to be richening?
oughtn't you to be richening?
oughtn't he to be richening?
oughtn't we to be richening?
oughtn't you to be richening?
oughtn't they to be richening? 	oughtn't I to have richened?
oughtn't you to have richened?
oughtn't he to have richened?
oughtn't we to have richened?
oughtn't you to have richened?
oughtn't they to have richened? 	oughtn't I to have been richening?
oughtn't you to have been richening?
oughtn't he to have been richening?
oughtn't we to have been richening?
oughtn't you to have been richening?
oughtn't they to have been richening?