may birl
Verbo regular: birl - birled- birled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may birl
you may birl
he may birl
we may birl
you may birl
they may birl 	I may be birling
you may be birling
he may be birling
we may be birling
you may be birling
they may be birling	I may have birled
you may have birled
he 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
he may have been birling
we may have been birling
you may have been birling
they may have been birling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mayn't birl
you mayn't birl
he 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
he 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
he 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
he mayn't have been birling
we mayn't have been birling
you mayn't have been birling
they mayn't have been birling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I birl?
may you birl?
may he birl?
may we birl?
may you birl?
may they birl? 	may I be birling?
may you be birling?
may he be birling?
may we be birling?
may you be birling?
may they be birling? 	may I have birled?
may you have birled?
may he 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 he have been birling?
may we have been birling?
may you have been birling?
may they have been birling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mayn't I birl?
mayn't you birl?
mayn't he 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 he 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 he 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 he have been birling?
mayn't we have been birling?
mayn't you have been birling?
mayn't they have been birling?