can petrify
Regular verb: petrify - petrified- petrified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I cannot petrify
you cannot petrify
he cannot petrify
we cannot petrify
you cannot petrify
they cannot petrify 	I cannot be petrifying
you cannot be petrifying
he cannot be petrifying
we cannot be petrifying
you cannot be petrifying
they cannot be petrifying	I cannot have petrified
you cannot have petrified
he cannot have petrified
we cannot have petrified
you cannot have petrified
they cannot have petrified	I cannot have been petrifying
you cannot have been petrifying
he cannot have been petrifying
we cannot have been petrifying
you cannot have been petrifying
they cannot have been petrifying	

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