English verb conjugation
CAN MYSTIFY

Regular verb: mystify - mystified - mystified

Affirmation

Simple form	V-ing form
I can mystify you can mystify he can mystify we can mystify you can mystify they can mystify	I can be mystifying you can be mystifying he can be mystifying we can be mystifying you can be mystifying they can be mystifying
Perfect	V-ing perfect
I can have mystified you can have mystified he can have mystified we can have mystified you can have mystified they can have mystified	I can have been mystifying you can have been mystifying he can have been mystifying we can have been mystifying you can have been mystifying they can have been mystifying

Negation

Simple form	V-ing form
I cannot mystify you cannot mystify he cannot mystify we cannot mystify you cannot mystify they cannot mystify	I cannot be mystifying you cannot be mystifying he cannot be mystifying we cannot be mystifying you cannot be mystifying they cannot be mystifying
Perfect	V-ing perfect
I cannot have mystified you cannot have mystified he cannot have mystified we cannot have mystified you cannot have mystified they cannot have mystified	I cannot have been mystifying you cannot have been mystifying he cannot have been mystifying we cannot have been mystifying you cannot have been mystifying they cannot have been mystifying

Interrogative form

Simple form	V-ing form
can I mystify? can you mystify? can he mystify? can we mystify? can you mystify? can they mystify?	can I be mystifying? can you be mystifying? can he be mystifying? can we be mystifying? can you be mystifying? can they be mystifying?
Perfect	V-ing perfect
can I have mystified? can you have mystified? can he have mystified? can we have mystified? can you have mystified? can they have mystified?	can I have been mystifying? can you have been mystifying? can he have been mystifying? can we have been mystifying? can you have been mystifying? can they have been mystifying?

Interro-negative form

Simple form	V-ing form
can I not mystify? can you not mystify? can he not mystify? can we not mystify? can you not mystify? can they not mystify?	can I not be mystifying? can you not be mystifying? can he not be mystifying? can we not be mystifying? can you not be mystifying? can they not be mystifying?
Perfect	V-ing perfect
can I not have mystified? can you not have mystified? can he not have mystified? can we not have mystified? can you not have mystified? can they not have mystified?	can I not have been mystifying? can you not have been mystifying? can he not have been mystifying? can we not have been mystifying? can you not have been mystifying? can they not have been mystifying?