ought to petrify
Regular verb: petrify - petrified- petrified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to petrify
you ought to petrify
he ought to petrify
we ought to petrify
you ought to petrify
they ought to petrify 	I ought to be petrifying
you ought to be petrifying
he ought to be petrifying
we ought to be petrifying
you ought to be petrifying
they ought to be petrifying	I ought to have petrified
you ought to have petrified
he ought to have petrified
we ought to have petrified
you ought to have petrified
they ought to have petrified	I ought to have been petrifying
you ought to have been petrifying
he ought to have been petrifying
we ought to have been petrifying
you ought to have been petrifying
they ought to have been petrifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to petrify
you oughtn't to petrify
he oughtn't to petrify
we oughtn't to petrify
you oughtn't to petrify
they oughtn't to petrify 	I oughtn't to be petrifying
you oughtn't to be petrifying
he oughtn't to be petrifying
we oughtn't to be petrifying
you oughtn't to be petrifying
they oughtn't to be petrifying	I oughtn't to have petrified
you oughtn't to have petrified
he oughtn't to have petrified
we oughtn't to have petrified
you oughtn't to have petrified
they oughtn't to have petrified	I oughtn't to have been petrifying
you oughtn't to have been petrifying
he oughtn't to have been petrifying
we oughtn't to have been petrifying
you oughtn't to have been petrifying
they oughtn't to have been petrifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I petrify?
ought to you petrify?
ought to he petrify?
ought to we petrify?
ought to you petrify?
ought to they petrify? 	ought to I be petrifying?
ought to you be petrifying?
ought to he be petrifying?
ought to we be petrifying?
ought to you be petrifying?
ought to they be petrifying? 	ought to I have petrified?
ought to you have petrified?
ought to he have petrified?
ought to we have petrified?
ought to you have petrified?
ought to they have petrified? 	ought to I have been petrifying?
ought to you have been petrifying?
ought to he have been petrifying?
ought to we have been petrifying?
ought to you have been petrifying?
ought to they have been petrifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to petrify?
oughtn't you to petrify?
oughtn't he to petrify?
oughtn't we to petrify?
oughtn't you to petrify?
oughtn't they to petrify? 	oughtn't I to be petrifying?
oughtn't you to be petrifying?
oughtn't he to be petrifying?
oughtn't we to be petrifying?
oughtn't you to be petrifying?
oughtn't they to be petrifying? 	oughtn't I to have petrified?
oughtn't you to have petrified?
oughtn't he to have petrified?
oughtn't we to have petrified?
oughtn't you to have petrified?
oughtn't they to have petrified? 	oughtn't I to have been petrifying?
oughtn't you to have been petrifying?
oughtn't he to have been petrifying?
oughtn't we to have been petrifying?
oughtn't you to have been petrifying?
oughtn't they to have been petrifying?