ought to kill
Regular verb: kill - killed- killed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to kill
you ought to kill
he ought to kill
we ought to kill
you ought to kill
they ought to kill 	I ought to be killing
you ought to be killing
he ought to be killing
we ought to be killing
you ought to be killing
they ought to be killing	I ought to have killed
you ought to have killed
he ought to have killed
we ought to have killed
you ought to have killed
they ought to have killed	I ought to have been killing
you ought to have been killing
he ought to have been killing
we ought to have been killing
you ought to have been killing
they ought to have been killing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to kill
you oughtn't to kill
he oughtn't to kill
we oughtn't to kill
you oughtn't to kill
they oughtn't to kill 	I oughtn't to be killing
you oughtn't to be killing
he oughtn't to be killing
we oughtn't to be killing
you oughtn't to be killing
they oughtn't to be killing	I oughtn't to have killed
you oughtn't to have killed
he oughtn't to have killed
we oughtn't to have killed
you oughtn't to have killed
they oughtn't to have killed	I oughtn't to have been killing
you oughtn't to have been killing
he oughtn't to have been killing
we oughtn't to have been killing
you oughtn't to have been killing
they oughtn't to have been killing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I kill?
ought to you kill?
ought to he kill?
ought to we kill?
ought to you kill?
ought to they kill? 	ought to I be killing?
ought to you be killing?
ought to he be killing?
ought to we be killing?
ought to you be killing?
ought to they be killing? 	ought to I have killed?
ought to you have killed?
ought to he have killed?
ought to we have killed?
ought to you have killed?
ought to they have killed? 	ought to I have been killing?
ought to you have been killing?
ought to he have been killing?
ought to we have been killing?
ought to you have been killing?
ought to they have been killing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to kill?
oughtn't you to kill?
oughtn't he to kill?
oughtn't we to kill?
oughtn't you to kill?
oughtn't they to kill? 	oughtn't I to be killing?
oughtn't you to be killing?
oughtn't he to be killing?
oughtn't we to be killing?
oughtn't you to be killing?
oughtn't they to be killing? 	oughtn't I to have killed?
oughtn't you to have killed?
oughtn't he to have killed?
oughtn't we to have killed?
oughtn't you to have killed?
oughtn't they to have killed? 	oughtn't I to have been killing?
oughtn't you to have been killing?
oughtn't he to have been killing?
oughtn't we to have been killing?
oughtn't you to have been killing?
oughtn't they to have been killing?