English verb conjugation
CAN VITRIFY

Regular verb: vitrify - vitrified - vitrified

Affirmation

Simple form	V-ing form
I can vitrify you can vitrify she can vitrify we can vitrify you can vitrify they can vitrify	I can be vitrifying you can be vitrifying she can be vitrifying we can be vitrifying you can be vitrifying they can be vitrifying
Perfect	V-ing perfect
I can have vitrified you can have vitrified she can have vitrified we can have vitrified you can have vitrified they can have vitrified	I can have been vitrifying you can have been vitrifying she can have been vitrifying we can have been vitrifying you can have been vitrifying they can have been vitrifying

Negation

Simple form	V-ing form
I cannot vitrify you cannot vitrify she cannot vitrify we cannot vitrify you cannot vitrify they cannot vitrify	I cannot be vitrifying you cannot be vitrifying she cannot be vitrifying we cannot be vitrifying you cannot be vitrifying they cannot be vitrifying
Perfect	V-ing perfect
I cannot have vitrified you cannot have vitrified she cannot have vitrified we cannot have vitrified you cannot have vitrified they cannot have vitrified	I cannot have been vitrifying you cannot have been vitrifying she cannot have been vitrifying we cannot have been vitrifying you cannot have been vitrifying they cannot have been vitrifying

Interrogative form

Simple form	V-ing form
can I vitrify? can you vitrify? can she vitrify? can we vitrify? can you vitrify? can they vitrify?	can I be vitrifying? can you be vitrifying? can she be vitrifying? can we be vitrifying? can you be vitrifying? can they be vitrifying?
Perfect	V-ing perfect
can I have vitrified? can you have vitrified? can she have vitrified? can we have vitrified? can you have vitrified? can they have vitrified?	can I have been vitrifying? can you have been vitrifying? can she have been vitrifying? can we have been vitrifying? can you have been vitrifying? can they have been vitrifying?

Interro-negative form

Simple form	V-ing form
can I not vitrify? can you not vitrify? can she not vitrify? can we not vitrify? can you not vitrify? can they not vitrify?	can I not be vitrifying? can you not be vitrifying? can she not be vitrifying? can we not be vitrifying? can you not be vitrifying? can they not be vitrifying?
Perfect	V-ing perfect
can I not have vitrified? can you not have vitrified? can she not have vitrified? can we not have vitrified? can you not have vitrified? can they not have vitrified?	can I not have been vitrifying? can you not have been vitrifying? can she not have been vitrifying? can we not have been vitrifying? can you not have been vitrifying? can they not have been vitrifying?