may invalid
Regular verb: invalid - invalided- invalided

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may invalid
you may invalid
he may invalid
we may invalid
you may invalid
they may invalid 	I may be invaliding
you may be invaliding
he may be invaliding
we may be invaliding
you may be invaliding
they may be invaliding	I may have invalided
you may have invalided
he may have invalided
we may have invalided
you may have invalided
they may have invalided	I may have been invaliding
you may have been invaliding
he may have been invaliding
we may have been invaliding
you may have been invaliding
they may have been invaliding	

Negation 	
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I mayn't invalid
you mayn't invalid
he mayn't invalid
we mayn't invalid
you mayn't invalid
they mayn't invalid 	I mayn't be invaliding
you mayn't be invaliding
he mayn't be invaliding
we mayn't be invaliding
you mayn't be invaliding
they mayn't be invaliding	I mayn't have invalided
you mayn't have invalided
he mayn't have invalided
we mayn't have invalided
you mayn't have invalided
they mayn't have invalided	I mayn't have been invaliding
you mayn't have been invaliding
he mayn't have been invaliding
we mayn't have been invaliding
you mayn't have been invaliding
they mayn't have been invaliding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I invalid?
may you invalid?
may he invalid?
may we invalid?
may you invalid?
may they invalid? 	may I be invaliding?
may you be invaliding?
may he be invaliding?
may we be invaliding?
may you be invaliding?
may they be invaliding? 	may I have invalided?
may you have invalided?
may he have invalided?
may we have invalided?
may you have invalided?
may they have invalided? 	may I have been invaliding?
may you have been invaliding?
may he have been invaliding?
may we have been invaliding?
may you have been invaliding?
may they have been invaliding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I invalid?
mayn't you invalid?
mayn't he invalid?
mayn't we invalid?
mayn't you invalid?
mayn't they invalid? 	mayn't I be invaliding?
mayn't you be invaliding?
mayn't he be invaliding?
mayn't we be invaliding?
mayn't you be invaliding?
mayn't they be invaliding? 	mayn't I have invalided?
mayn't you have invalided?
mayn't he have invalided?
mayn't we have invalided?
mayn't you have invalided?
mayn't they have invalided? 	mayn't I have been invaliding?
mayn't you have been invaliding?
mayn't he have been invaliding?
mayn't we have been invaliding?
mayn't you have been invaliding?
mayn't they have been invaliding?