may deck
Regular verb: deck - decked- decked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may deck
you may deck
she may deck
we may deck
you may deck
they may deck 	I may be decking
you may be decking
she may be decking
we may be decking
you may be decking
they may be decking	I may have decked
you may have decked
she may have decked
we may have decked
you may have decked
they may have decked	I may have been decking
you may have been decking
she may have been decking
we may have been decking
you may have been decking
they may have been decking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't deck
you mayn't deck
she mayn't deck
we mayn't deck
you mayn't deck
they mayn't deck 	I mayn't be decking
you mayn't be decking
she mayn't be decking
we mayn't be decking
you mayn't be decking
they mayn't be decking	I mayn't have decked
you mayn't have decked
she mayn't have decked
we mayn't have decked
you mayn't have decked
they mayn't have decked	I mayn't have been decking
you mayn't have been decking
she mayn't have been decking
we mayn't have been decking
you mayn't have been decking
they mayn't have been decking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I deck?
may you deck?
may she deck?
may we deck?
may you deck?
may they deck? 	may I be decking?
may you be decking?
may she be decking?
may we be decking?
may you be decking?
may they be decking? 	may I have decked?
may you have decked?
may she have decked?
may we have decked?
may you have decked?
may they have decked? 	may I have been decking?
may you have been decking?
may she have been decking?
may we have been decking?
may you have been decking?
may they have been decking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I deck?
mayn't you deck?
mayn't she deck?
mayn't we deck?
mayn't you deck?
mayn't they deck? 	mayn't I be decking?
mayn't you be decking?
mayn't she be decking?
mayn't we be decking?
mayn't you be decking?
mayn't they be decking? 	mayn't I have decked?
mayn't you have decked?
mayn't she have decked?
mayn't we have decked?
mayn't you have decked?
mayn't they have decked? 	mayn't I have been decking?
mayn't you have been decking?
mayn't she have been decking?
mayn't we have been decking?
mayn't you have been decking?
mayn't they have been decking?