may insulate
Regular verb: insulate - insulated- insulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may insulate
you may insulate
he may insulate
we may insulate
you may insulate
they may insulate 	I may be insulating
you may be insulating
he may be insulating
we may be insulating
you may be insulating
they may be insulating	I may have insulated
you may have insulated
he may have insulated
we may have insulated
you may have insulated
they may have insulated	I may have been insulating
you may have been insulating
he may have been insulating
we may have been insulating
you may have been insulating
they may have been insulating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't insulate
you mayn't insulate
he mayn't insulate
we mayn't insulate
you mayn't insulate
they mayn't insulate 	I mayn't be insulating
you mayn't be insulating
he mayn't be insulating
we mayn't be insulating
you mayn't be insulating
they mayn't be insulating	I mayn't have insulated
you mayn't have insulated
he mayn't have insulated
we mayn't have insulated
you mayn't have insulated
they mayn't have insulated	I mayn't have been insulating
you mayn't have been insulating
he mayn't have been insulating
we mayn't have been insulating
you mayn't have been insulating
they mayn't have been insulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I insulate?
may you insulate?
may he insulate?
may we insulate?
may you insulate?
may they insulate? 	may I be insulating?
may you be insulating?
may he be insulating?
may we be insulating?
may you be insulating?
may they be insulating? 	may I have insulated?
may you have insulated?
may he have insulated?
may we have insulated?
may you have insulated?
may they have insulated? 	may I have been insulating?
may you have been insulating?
may he have been insulating?
may we have been insulating?
may you have been insulating?
may they have been insulating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I insulate?
mayn't you insulate?
mayn't he insulate?
mayn't we insulate?
mayn't you insulate?
mayn't they insulate? 	mayn't I be insulating?
mayn't you be insulating?
mayn't he be insulating?
mayn't we be insulating?
mayn't you be insulating?
mayn't they be insulating? 	mayn't I have insulated?
mayn't you have insulated?
mayn't he have insulated?
mayn't we have insulated?
mayn't you have insulated?
mayn't they have insulated? 	mayn't I have been insulating?
mayn't you have been insulating?
mayn't he have been insulating?
mayn't we have been insulating?
mayn't you have been insulating?
mayn't they have been insulating?