English verb conjugation
CAN VERSIFY

Regular verb: versify - versified - versified

Affirmation

Simple form	V-ing form
I can versify you can versify he can versify we can versify you can versify they can versify	I can be versifying you can be versifying he can be versifying we can be versifying you can be versifying they can be versifying
Perfect	V-ing perfect
I can have versified you can have versified he can have versified we can have versified you can have versified they can have versified	I can have been versifying you can have been versifying he can have been versifying we can have been versifying you can have been versifying they can have been versifying

Negation

Simple form	V-ing form
I cannot versify you cannot versify he cannot versify we cannot versify you cannot versify they cannot versify	I cannot be versifying you cannot be versifying he cannot be versifying we cannot be versifying you cannot be versifying they cannot be versifying
Perfect	V-ing perfect
I cannot have versified you cannot have versified he cannot have versified we cannot have versified you cannot have versified they cannot have versified	I cannot have been versifying you cannot have been versifying he cannot have been versifying we cannot have been versifying you cannot have been versifying they cannot have been versifying

Interrogative form

Simple form	V-ing form
can I versify? can you versify? can he versify? can we versify? can you versify? can they versify?	can I be versifying? can you be versifying? can he be versifying? can we be versifying? can you be versifying? can they be versifying?
Perfect	V-ing perfect
can I have versified? can you have versified? can he have versified? can we have versified? can you have versified? can they have versified?	can I have been versifying? can you have been versifying? can he have been versifying? can we have been versifying? can you have been versifying? can they have been versifying?

Interro-negative form

Simple form	V-ing form
can I not versify? can you not versify? can he not versify? can we not versify? can you not versify? can they not versify?	can I not be versifying? can you not be versifying? can he not be versifying? can we not be versifying? can you not be versifying? can they not be versifying?
Perfect	V-ing perfect
can I not have versified? can you not have versified? can he not have versified? can we not have versified? can you not have versified? can they not have versified?	can I not have been versifying? can you not have been versifying? can he not have been versifying? can we not have been versifying? can you not have been versifying? can they not have been versifying?