may festoon
Regular verb: festoon - festooned- festooned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may festoon
you may festoon
he may festoon
we may festoon
you may festoon
they may festoon 	I may be festooning
you may be festooning
he may be festooning
we may be festooning
you may be festooning
they may be festooning	I may have festooned
you may have festooned
he may have festooned
we may have festooned
you may have festooned
they may have festooned	I may have been festooning
you may have been festooning
he may have been festooning
we may have been festooning
you may have been festooning
they may have been festooning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't festoon
you mayn't festoon
he mayn't festoon
we mayn't festoon
you mayn't festoon
they mayn't festoon 	I mayn't be festooning
you mayn't be festooning
he mayn't be festooning
we mayn't be festooning
you mayn't be festooning
they mayn't be festooning	I mayn't have festooned
you mayn't have festooned
he mayn't have festooned
we mayn't have festooned
you mayn't have festooned
they mayn't have festooned	I mayn't have been festooning
you mayn't have been festooning
he mayn't have been festooning
we mayn't have been festooning
you mayn't have been festooning
they mayn't have been festooning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I festoon?
may you festoon?
may he festoon?
may we festoon?
may you festoon?
may they festoon? 	may I be festooning?
may you be festooning?
may he be festooning?
may we be festooning?
may you be festooning?
may they be festooning? 	may I have festooned?
may you have festooned?
may he have festooned?
may we have festooned?
may you have festooned?
may they have festooned? 	may I have been festooning?
may you have been festooning?
may he have been festooning?
may we have been festooning?
may you have been festooning?
may they have been festooning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I festoon?
mayn't you festoon?
mayn't he festoon?
mayn't we festoon?
mayn't you festoon?
mayn't they festoon? 	mayn't I be festooning?
mayn't you be festooning?
mayn't he be festooning?
mayn't we be festooning?
mayn't you be festooning?
mayn't they be festooning? 	mayn't I have festooned?
mayn't you have festooned?
mayn't he have festooned?
mayn't we have festooned?
mayn't you have festooned?
mayn't they have festooned? 	mayn't I have been festooning?
mayn't you have been festooning?
mayn't he have been festooning?
mayn't we have been festooning?
mayn't you have been festooning?
mayn't they have been festooning?