may prefix
Regular verb: prefix - prefixed- prefixed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may prefix
you may prefix
he may prefix
we may prefix
you may prefix
they may prefix 	I may be prefixing
you may be prefixing
he may be prefixing
we may be prefixing
you may be prefixing
they may be prefixing	I may have prefixed
you may have prefixed
he may have prefixed
we may have prefixed
you may have prefixed
they may have prefixed	I may have been prefixing
you may have been prefixing
he may have been prefixing
we may have been prefixing
you may have been prefixing
they may have been prefixing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not prefix
you may not prefix
he may not prefix
we may not prefix
you may not prefix
they may not prefix 	I may not be prefixing
you may not be prefixing
he may not be prefixing
we may not be prefixing
you may not be prefixing
they may not be prefixing	I may not have prefixed
you may not have prefixed
he may not have prefixed
we may not have prefixed
you may not have prefixed
they may not have prefixed	I may not have been prefixing
you may not have been prefixing
he may not have been prefixing
we may not have been prefixing
you may not have been prefixing
they may not have been prefixing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I prefix?
may you prefix?
may he prefix?
may we prefix?
may you prefix?
may they prefix? 	may I be prefixing?
may you be prefixing?
may he be prefixing?
may we be prefixing?
may you be prefixing?
may they be prefixing? 	may I have prefixed?
may you have prefixed?
may he have prefixed?
may we have prefixed?
may you have prefixed?
may they have prefixed? 	may I have been prefixing?
may you have been prefixing?
may he have been prefixing?
may we have been prefixing?
may you have been prefixing?
may they have been prefixing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not prefix?
may you not prefix?
may he not prefix?
may we not prefix?
may you not prefix?
may they not prefix? 	may I not be prefixing?
may you not be prefixing?
may he not be prefixing?
may we not be prefixing?
may you not be prefixing?
may they not be prefixing? 	may I not have prefixed?
may you not have prefixed?
may he not have prefixed?
may we not have prefixed?
may you not have prefixed?
may they not have prefixed? 	may I not have been prefixing?
may you not have been prefixing?
may he not have been prefixing?
may we not have been prefixing?
may you not have been prefixing?
may they not have been prefixing?