may birl
Regular verb: birl - birled- birled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may birl
you may birl
she may birl
we may birl
you may birl
they may birl 	I may be birling
you may be birling
she may be birling
we may be birling
you may be birling
they may be birling	I may have birled
you may have birled
she may have birled
we may have birled
you may have birled
they may have birled	I may have been birling
you may have been birling
she may have been birling
we may have been birling
you may have been birling
they may have been birling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't birl
you mayn't birl
she mayn't birl
we mayn't birl
you mayn't birl
they mayn't birl 	I mayn't be birling
you mayn't be birling
she mayn't be birling
we mayn't be birling
you mayn't be birling
they mayn't be birling	I mayn't have birled
you mayn't have birled
she mayn't have birled
we mayn't have birled
you mayn't have birled
they mayn't have birled	I mayn't have been birling
you mayn't have been birling
she mayn't have been birling
we mayn't have been birling
you mayn't have been birling
they mayn't have been birling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I birl?
may you birl?
may she birl?
may we birl?
may you birl?
may they birl? 	may I be birling?
may you be birling?
may she be birling?
may we be birling?
may you be birling?
may they be birling? 	may I have birled?
may you have birled?
may she have birled?
may we have birled?
may you have birled?
may they have birled? 	may I have been birling?
may you have been birling?
may she have been birling?
may we have been birling?
may you have been birling?
may they have been birling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I birl?
mayn't you birl?
mayn't she birl?
mayn't we birl?
mayn't you birl?
mayn't they birl? 	mayn't I be birling?
mayn't you be birling?
mayn't she be birling?
mayn't we be birling?
mayn't you be birling?
mayn't they be birling? 	mayn't I have birled?
mayn't you have birled?
mayn't she have birled?
mayn't we have birled?
mayn't you have birled?
mayn't they have birled? 	mayn't I have been birling?
mayn't you have been birling?
mayn't she have been birling?
mayn't we have been birling?
mayn't you have been birling?
mayn't they have been birling?