may underact
Regular verb: underact - underacted- underacted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may underact
you may underact
he may underact
we may underact
you may underact
they may underact 	I may be underacting
you may be underacting
he may be underacting
we may be underacting
you may be underacting
they may be underacting	I may have underacted
you may have underacted
he may have underacted
we may have underacted
you may have underacted
they may have underacted	I may have been underacting
you may have been underacting
he may have been underacting
we may have been underacting
you may have been underacting
they may have been underacting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't underact
you mayn't underact
he mayn't underact
we mayn't underact
you mayn't underact
they mayn't underact 	I mayn't be underacting
you mayn't be underacting
he mayn't be underacting
we mayn't be underacting
you mayn't be underacting
they mayn't be underacting	I mayn't have underacted
you mayn't have underacted
he mayn't have underacted
we mayn't have underacted
you mayn't have underacted
they mayn't have underacted	I mayn't have been underacting
you mayn't have been underacting
he mayn't have been underacting
we mayn't have been underacting
you mayn't have been underacting
they mayn't have been underacting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I underact?
may you underact?
may he underact?
may we underact?
may you underact?
may they underact? 	may I be underacting?
may you be underacting?
may he be underacting?
may we be underacting?
may you be underacting?
may they be underacting? 	may I have underacted?
may you have underacted?
may he have underacted?
may we have underacted?
may you have underacted?
may they have underacted? 	may I have been underacting?
may you have been underacting?
may he have been underacting?
may we have been underacting?
may you have been underacting?
may they have been underacting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I underact?
mayn't you underact?
mayn't he underact?
mayn't we underact?
mayn't you underact?
mayn't they underact? 	mayn't I be underacting?
mayn't you be underacting?
mayn't he be underacting?
mayn't we be underacting?
mayn't you be underacting?
mayn't they be underacting? 	mayn't I have underacted?
mayn't you have underacted?
mayn't he have underacted?
mayn't we have underacted?
mayn't you have underacted?
mayn't they have underacted? 	mayn't I have been underacting?
mayn't you have been underacting?
mayn't he have been underacting?
mayn't we have been underacting?
mayn't you have been underacting?
mayn't they have been underacting?