may sub
Verbo regular: sub - subbed- subbed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may sub
you may sub
he may sub
we may sub
you may sub
they may sub 	I may be subbing
you may be subbing
he may be subbing
we may be subbing
you may be subbing
they may be subbing	I may have subbed
you may have subbed
he may have subbed
we may have subbed
you may have subbed
they may have subbed	I may have been subbing
you may have been subbing
he may have been subbing
we may have been subbing
you may have been subbing
they may have been subbing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mayn't sub
you mayn't sub
he mayn't sub
we mayn't sub
you mayn't sub
they mayn't sub 	I mayn't be subbing
you mayn't be subbing
he mayn't be subbing
we mayn't be subbing
you mayn't be subbing
they mayn't be subbing	I mayn't have subbed
you mayn't have subbed
he mayn't have subbed
we mayn't have subbed
you mayn't have subbed
they mayn't have subbed	I mayn't have been subbing
you mayn't have been subbing
he mayn't have been subbing
we mayn't have been subbing
you mayn't have been subbing
they mayn't have been subbing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I sub?
may you sub?
may he sub?
may we sub?
may you sub?
may they sub? 	may I be subbing?
may you be subbing?
may he be subbing?
may we be subbing?
may you be subbing?
may they be subbing? 	may I have subbed?
may you have subbed?
may he have subbed?
may we have subbed?
may you have subbed?
may they have subbed? 	may I have been subbing?
may you have been subbing?
may he have been subbing?
may we have been subbing?
may you have been subbing?
may they have been subbing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mayn't I sub?
mayn't you sub?
mayn't he sub?
mayn't we sub?
mayn't you sub?
mayn't they sub? 	mayn't I be subbing?
mayn't you be subbing?
mayn't he be subbing?
mayn't we be subbing?
mayn't you be subbing?
mayn't they be subbing? 	mayn't I have subbed?
mayn't you have subbed?
mayn't he have subbed?
mayn't we have subbed?
mayn't you have subbed?
mayn't they have subbed? 	mayn't I have been subbing?
mayn't you have been subbing?
mayn't he have been subbing?
mayn't we have been subbing?
mayn't you have been subbing?
mayn't they have been subbing?