English verb conjugation
OUGHT TO PETRIFY

Regular verb: petrify - petrified - petrified

Affirmation

Simple form	V-ing form
I ought to petrify you ought to petrify she 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 she ought to be petrifying we ought to be petrifying you ought to be petrifying they ought to be petrifying
Perfect	V-ing perfect
I ought to have petrified you ought to have petrified she 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 she 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
I oughtn't to petrify you oughtn't to petrify she 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 she oughtn't to be petrifying we oughtn't to be petrifying you oughtn't to be petrifying they oughtn't to be petrifying
Perfect	V-ing perfect
I oughtn't to have petrified you oughtn't to have petrified she 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 she 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
ought to I petrify? ought to you petrify? ought to she 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 she be petrifying? ought to we be petrifying? ought to you be petrifying? ought to they be petrifying?
Perfect	V-ing perfect
ought to I have petrified? ought to you have petrified? ought to she 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 she 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
oughtn't I to petrify? oughtn't you to petrify? oughtn't she 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 she to be petrifying? oughtn't we to be petrifying? oughtn't you to be petrifying? oughtn't they to be petrifying?
Perfect	V-ing perfect
oughtn't I to have petrified? oughtn't you to have petrified? oughtn't she 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 she 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?