ought to incurvate
Regular verb: incurvate - incurvated- incurvated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to incurvate
you ought to incurvate
he ought to incurvate
we ought to incurvate
you ought to incurvate
they ought to incurvate 	I ought to be incurvating
you ought to be incurvating
he ought to be incurvating
we ought to be incurvating
you ought to be incurvating
they ought to be incurvating	I ought to have incurvated
you ought to have incurvated
he ought to have incurvated
we ought to have incurvated
you ought to have incurvated
they ought to have incurvated	I ought to have been incurvating
you ought to have been incurvating
he ought to have been incurvating
we ought to have been incurvating
you ought to have been incurvating
they ought to have been incurvating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to incurvate
you oughtn't to incurvate
he oughtn't to incurvate
we oughtn't to incurvate
you oughtn't to incurvate
they oughtn't to incurvate 	I oughtn't to be incurvating
you oughtn't to be incurvating
he oughtn't to be incurvating
we oughtn't to be incurvating
you oughtn't to be incurvating
they oughtn't to be incurvating	I oughtn't to have incurvated
you oughtn't to have incurvated
he oughtn't to have incurvated
we oughtn't to have incurvated
you oughtn't to have incurvated
they oughtn't to have incurvated	I oughtn't to have been incurvating
you oughtn't to have been incurvating
he oughtn't to have been incurvating
we oughtn't to have been incurvating
you oughtn't to have been incurvating
they oughtn't to have been incurvating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I incurvate?
ought to you incurvate?
ought to he incurvate?
ought to we incurvate?
ought to you incurvate?
ought to they incurvate? 	ought to I be incurvating?
ought to you be incurvating?
ought to he be incurvating?
ought to we be incurvating?
ought to you be incurvating?
ought to they be incurvating? 	ought to I have incurvated?
ought to you have incurvated?
ought to he have incurvated?
ought to we have incurvated?
ought to you have incurvated?
ought to they have incurvated? 	ought to I have been incurvating?
ought to you have been incurvating?
ought to he have been incurvating?
ought to we have been incurvating?
ought to you have been incurvating?
ought to they have been incurvating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to incurvate?
oughtn't you to incurvate?
oughtn't he to incurvate?
oughtn't we to incurvate?
oughtn't you to incurvate?
oughtn't they to incurvate? 	oughtn't I to be incurvating?
oughtn't you to be incurvating?
oughtn't he to be incurvating?
oughtn't we to be incurvating?
oughtn't you to be incurvating?
oughtn't they to be incurvating? 	oughtn't I to have incurvated?
oughtn't you to have incurvated?
oughtn't he to have incurvated?
oughtn't we to have incurvated?
oughtn't you to have incurvated?
oughtn't they to have incurvated? 	oughtn't I to have been incurvating?
oughtn't you to have been incurvating?
oughtn't he to have been incurvating?
oughtn't we to have been incurvating?
oughtn't you to have been incurvating?
oughtn't they to have been incurvating?