may insulate
Regular verb: insulate - insulated- insulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may insulate
you may insulate
she may insulate
we may insulate
you may insulate
they may insulate 	I may be insulating
you may be insulating
she may be insulating
we may be insulating
you may be insulating
they may be insulating	I may have insulated
you may have insulated
she 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
she 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
she 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
she 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
she 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
she 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 she insulate?
may we insulate?
may you insulate?
may they insulate? 	may I be insulating?
may you be insulating?
may she be insulating?
may we be insulating?
may you be insulating?
may they be insulating? 	may I have insulated?
may you have insulated?
may she 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 she 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 she 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 she 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 she 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 she have been insulating?
mayn't we have been insulating?
mayn't you have been insulating?
mayn't they have been insulating?