may ring-fence
Regular verb: ring-fence - ring-fenced- ring-fenced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may ring-fence
you may ring-fence
he may ring-fence
we may ring-fence
you may ring-fence
they may ring-fence 	I may be ring-fencing
you may be ring-fencing
he may be ring-fencing
we may be ring-fencing
you may be ring-fencing
they may be ring-fencing	I may have ring-fenced
you may have ring-fenced
he may have ring-fenced
we may have ring-fenced
you may have ring-fenced
they may have ring-fenced	I may have been ring-fencing
you may have been ring-fencing
he may have been ring-fencing
we may have been ring-fencing
you may have been ring-fencing
they may have been ring-fencing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't ring-fence
you mayn't ring-fence
he mayn't ring-fence
we mayn't ring-fence
you mayn't ring-fence
they mayn't ring-fence 	I mayn't be ring-fencing
you mayn't be ring-fencing
he mayn't be ring-fencing
we mayn't be ring-fencing
you mayn't be ring-fencing
they mayn't be ring-fencing	I mayn't have ring-fenced
you mayn't have ring-fenced
he mayn't have ring-fenced
we mayn't have ring-fenced
you mayn't have ring-fenced
they mayn't have ring-fenced	I mayn't have been ring-fencing
you mayn't have been ring-fencing
he mayn't have been ring-fencing
we mayn't have been ring-fencing
you mayn't have been ring-fencing
they mayn't have been ring-fencing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I ring-fence?
may you ring-fence?
may he ring-fence?
may we ring-fence?
may you ring-fence?
may they ring-fence? 	may I be ring-fencing?
may you be ring-fencing?
may he be ring-fencing?
may we be ring-fencing?
may you be ring-fencing?
may they be ring-fencing? 	may I have ring-fenced?
may you have ring-fenced?
may he have ring-fenced?
may we have ring-fenced?
may you have ring-fenced?
may they have ring-fenced? 	may I have been ring-fencing?
may you have been ring-fencing?
may he have been ring-fencing?
may we have been ring-fencing?
may you have been ring-fencing?
may they have been ring-fencing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I ring-fence?
mayn't you ring-fence?
mayn't he ring-fence?
mayn't we ring-fence?
mayn't you ring-fence?
mayn't they ring-fence? 	mayn't I be ring-fencing?
mayn't you be ring-fencing?
mayn't he be ring-fencing?
mayn't we be ring-fencing?
mayn't you be ring-fencing?
mayn't they be ring-fencing? 	mayn't I have ring-fenced?
mayn't you have ring-fenced?
mayn't he have ring-fenced?
mayn't we have ring-fenced?
mayn't you have ring-fenced?
mayn't they have ring-fenced? 	mayn't I have been ring-fencing?
mayn't you have been ring-fencing?
mayn't he have been ring-fencing?
mayn't we have been ring-fencing?
mayn't you have been ring-fencing?
mayn't they have been ring-fencing?