may swap
Regular verb: swap - swaped- swaped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may swap
you may swap
he may swap
we may swap
you may swap
they may swap 	I may be swaping
you may be swaping
he may be swaping
we may be swaping
you may be swaping
they may be swaping	I may have swaped
you may have swaped
he may have swaped
we may have swaped
you may have swaped
they may have swaped	I may have been swaping
you may have been swaping
he may have been swaping
we may have been swaping
you may have been swaping
they may have been swaping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't swap
you mayn't swap
he mayn't swap
we mayn't swap
you mayn't swap
they mayn't swap 	I mayn't be swaping
you mayn't be swaping
he mayn't be swaping
we mayn't be swaping
you mayn't be swaping
they mayn't be swaping	I mayn't have swaped
you mayn't have swaped
he mayn't have swaped
we mayn't have swaped
you mayn't have swaped
they mayn't have swaped	I mayn't have been swaping
you mayn't have been swaping
he mayn't have been swaping
we mayn't have been swaping
you mayn't have been swaping
they mayn't have been swaping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I swap?
may you swap?
may he swap?
may we swap?
may you swap?
may they swap? 	may I be swaping?
may you be swaping?
may he be swaping?
may we be swaping?
may you be swaping?
may they be swaping? 	may I have swaped?
may you have swaped?
may he have swaped?
may we have swaped?
may you have swaped?
may they have swaped? 	may I have been swaping?
may you have been swaping?
may he have been swaping?
may we have been swaping?
may you have been swaping?
may they have been swaping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I swap?
mayn't you swap?
mayn't he swap?
mayn't we swap?
mayn't you swap?
mayn't they swap? 	mayn't I be swaping?
mayn't you be swaping?
mayn't he be swaping?
mayn't we be swaping?
mayn't you be swaping?
mayn't they be swaping? 	mayn't I have swaped?
mayn't you have swaped?
mayn't he have swaped?
mayn't we have swaped?
mayn't you have swaped?
mayn't they have swaped? 	mayn't I have been swaping?
mayn't you have been swaping?
mayn't he have been swaping?
mayn't we have been swaping?
mayn't you have been swaping?
mayn't they have been swaping?