English verb conjugation
CAN FALSIFY

Regular verb: falsify - falsified - falsified

Affirmation

Simple form	V-ing form
I can falsify you can falsify he can falsify we can falsify you can falsify they can falsify	I can be falsifying you can be falsifying he can be falsifying we can be falsifying you can be falsifying they can be falsifying
Perfect	V-ing perfect
I can have falsified you can have falsified he can have falsified we can have falsified you can have falsified they can have falsified	I can have been falsifying you can have been falsifying he can have been falsifying we can have been falsifying you can have been falsifying they can have been falsifying

Negation

Simple form	V-ing form
I cannot falsify you cannot falsify he cannot falsify we cannot falsify you cannot falsify they cannot falsify	I cannot be falsifying you cannot be falsifying he cannot be falsifying we cannot be falsifying you cannot be falsifying they cannot be falsifying
Perfect	V-ing perfect
I cannot have falsified you cannot have falsified he cannot have falsified we cannot have falsified you cannot have falsified they cannot have falsified	I cannot have been falsifying you cannot have been falsifying he cannot have been falsifying we cannot have been falsifying you cannot have been falsifying they cannot have been falsifying

Interrogative form

Simple form	V-ing form
can I falsify? can you falsify? can he falsify? can we falsify? can you falsify? can they falsify?	can I be falsifying? can you be falsifying? can he be falsifying? can we be falsifying? can you be falsifying? can they be falsifying?
Perfect	V-ing perfect
can I have falsified? can you have falsified? can he have falsified? can we have falsified? can you have falsified? can they have falsified?	can I have been falsifying? can you have been falsifying? can he have been falsifying? can we have been falsifying? can you have been falsifying? can they have been falsifying?

Interro-negative form

Simple form	V-ing form
can I not falsify? can you not falsify? can he not falsify? can we not falsify? can you not falsify? can they not falsify?	can I not be falsifying? can you not be falsifying? can he not be falsifying? can we not be falsifying? can you not be falsifying? can they not be falsifying?
Perfect	V-ing perfect
can I not have falsified? can you not have falsified? can he not have falsified? can we not have falsified? can you not have falsified? can they not have falsified?	can I not have been falsifying? can you not have been falsifying? can he not have been falsifying? can we not have been falsifying? can you not have been falsifying? can they not have been falsifying?