may tank
Regular verb: tank - tanked- tanked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may tank
you may tank
he may tank
we may tank
you may tank
they may tank 	I may be tanking
you may be tanking
he may be tanking
we may be tanking
you may be tanking
they may be tanking	I may have tanked
you may have tanked
he may have tanked
we may have tanked
you may have tanked
they may have tanked	I may have been tanking
you may have been tanking
he may have been tanking
we may have been tanking
you may have been tanking
they may have been tanking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't tank
you mayn't tank
he mayn't tank
we mayn't tank
you mayn't tank
they mayn't tank 	I mayn't be tanking
you mayn't be tanking
he mayn't be tanking
we mayn't be tanking
you mayn't be tanking
they mayn't be tanking	I mayn't have tanked
you mayn't have tanked
he mayn't have tanked
we mayn't have tanked
you mayn't have tanked
they mayn't have tanked	I mayn't have been tanking
you mayn't have been tanking
he mayn't have been tanking
we mayn't have been tanking
you mayn't have been tanking
they mayn't have been tanking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I tank?
may you tank?
may he tank?
may we tank?
may you tank?
may they tank? 	may I be tanking?
may you be tanking?
may he be tanking?
may we be tanking?
may you be tanking?
may they be tanking? 	may I have tanked?
may you have tanked?
may he have tanked?
may we have tanked?
may you have tanked?
may they have tanked? 	may I have been tanking?
may you have been tanking?
may he have been tanking?
may we have been tanking?
may you have been tanking?
may they have been tanking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I tank?
mayn't you tank?
mayn't he tank?
mayn't we tank?
mayn't you tank?
mayn't they tank? 	mayn't I be tanking?
mayn't you be tanking?
mayn't he be tanking?
mayn't we be tanking?
mayn't you be tanking?
mayn't they be tanking? 	mayn't I have tanked?
mayn't you have tanked?
mayn't he have tanked?
mayn't we have tanked?
mayn't you have tanked?
mayn't they have tanked? 	mayn't I have been tanking?
mayn't you have been tanking?
mayn't he have been tanking?
mayn't we have been tanking?
mayn't you have been tanking?
mayn't they have been tanking?