English verb conjugation
CAN PETRIFY

Regular verb: petrify - petrified - petrified

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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