may falsify
Regular verb: falsify - falsified- falsified

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't falsify
you mayn't falsify
he mayn't falsify
we mayn't falsify
you mayn't falsify
they mayn't falsify 	I mayn't be falsifying
you mayn't be falsifying
he mayn't be falsifying
we mayn't be falsifying
you mayn't be falsifying
they mayn't be falsifying	I mayn't have falsified
you mayn't have falsified
he mayn't have falsified
we mayn't have falsified
you mayn't have falsified
they mayn't have falsified	I mayn't have been falsifying
you mayn't have been falsifying
he mayn't have been falsifying
we mayn't have been falsifying
you mayn't have been falsifying
they mayn't have been falsifying	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I falsify?
mayn't you falsify?
mayn't he falsify?
mayn't we falsify?
mayn't you falsify?
mayn't they falsify? 	mayn't I be falsifying?
mayn't you be falsifying?
mayn't he be falsifying?
mayn't we be falsifying?
mayn't you be falsifying?
mayn't they be falsifying? 	mayn't I have falsified?
mayn't you have falsified?
mayn't he have falsified?
mayn't we have falsified?
mayn't you have falsified?
mayn't they have falsified? 	mayn't I have been falsifying?
mayn't you have been falsifying?
mayn't he have been falsifying?
mayn't we have been falsifying?
mayn't you have been falsifying?
mayn't they have been falsifying?