may preinform
Regular verb: preinform - preinformed- preinformed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may preinform
you may preinform
he may preinform
we may preinform
you may preinform
they may preinform 	I may be preinforming
you may be preinforming
he may be preinforming
we may be preinforming
you may be preinforming
they may be preinforming	I may have preinformed
you may have preinformed
he may have preinformed
we may have preinformed
you may have preinformed
they may have preinformed	I may have been preinforming
you may have been preinforming
he may have been preinforming
we may have been preinforming
you may have been preinforming
they may have been preinforming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't preinform
you mayn't preinform
he mayn't preinform
we mayn't preinform
you mayn't preinform
they mayn't preinform 	I mayn't be preinforming
you mayn't be preinforming
he mayn't be preinforming
we mayn't be preinforming
you mayn't be preinforming
they mayn't be preinforming	I mayn't have preinformed
you mayn't have preinformed
he mayn't have preinformed
we mayn't have preinformed
you mayn't have preinformed
they mayn't have preinformed	I mayn't have been preinforming
you mayn't have been preinforming
he mayn't have been preinforming
we mayn't have been preinforming
you mayn't have been preinforming
they mayn't have been preinforming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I preinform?
may you preinform?
may he preinform?
may we preinform?
may you preinform?
may they preinform? 	may I be preinforming?
may you be preinforming?
may he be preinforming?
may we be preinforming?
may you be preinforming?
may they be preinforming? 	may I have preinformed?
may you have preinformed?
may he have preinformed?
may we have preinformed?
may you have preinformed?
may they have preinformed? 	may I have been preinforming?
may you have been preinforming?
may he have been preinforming?
may we have been preinforming?
may you have been preinforming?
may they have been preinforming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I preinform?
mayn't you preinform?
mayn't he preinform?
mayn't we preinform?
mayn't you preinform?
mayn't they preinform? 	mayn't I be preinforming?
mayn't you be preinforming?
mayn't he be preinforming?
mayn't we be preinforming?
mayn't you be preinforming?
mayn't they be preinforming? 	mayn't I have preinformed?
mayn't you have preinformed?
mayn't he have preinformed?
mayn't we have preinformed?
mayn't you have preinformed?
mayn't they have preinformed? 	mayn't I have been preinforming?
mayn't you have been preinforming?
mayn't he have been preinforming?
mayn't we have been preinforming?
mayn't you have been preinforming?
mayn't they have been preinforming?