may stub
Verbo regular: stub - stubbed- stubbed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may stub
you may stub
he may stub
we may stub
you may stub
they may stub 	I may be stubbing
you may be stubbing
he may be stubbing
we may be stubbing
you may be stubbing
they may be stubbing	I may have stubbed
you may have stubbed
he may have stubbed
we may have stubbed
you may have stubbed
they may have stubbed	I may have been stubbing
you may have been stubbing
he may have been stubbing
we may have been stubbing
you may have been stubbing
they may have been stubbing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not stub
you may not stub
he may not stub
we may not stub
you may not stub
they may not stub 	I may not be stubbing
you may not be stubbing
he may not be stubbing
we may not be stubbing
you may not be stubbing
they may not be stubbing	I may not have stubbed
you may not have stubbed
he may not have stubbed
we may not have stubbed
you may not have stubbed
they may not have stubbed	I may not have been stubbing
you may not have been stubbing
he may not have been stubbing
we may not have been stubbing
you may not have been stubbing
they may not have been stubbing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I stub?
may you stub?
may he stub?
may we stub?
may you stub?
may they stub? 	may I be stubbing?
may you be stubbing?
may he be stubbing?
may we be stubbing?
may you be stubbing?
may they be stubbing? 	may I have stubbed?
may you have stubbed?
may he have stubbed?
may we have stubbed?
may you have stubbed?
may they have stubbed? 	may I have been stubbing?
may you have been stubbing?
may he have been stubbing?
may we have been stubbing?
may you have been stubbing?
may they have been stubbing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not stub?
may you not stub?
may he not stub?
may we not stub?
may you not stub?
may they not stub? 	may I not be stubbing?
may you not be stubbing?
may he not be stubbing?
may we not be stubbing?
may you not be stubbing?
may they not be stubbing? 	may I not have stubbed?
may you not have stubbed?
may he not have stubbed?
may we not have stubbed?
may you not have stubbed?
may they not have stubbed? 	may I not have been stubbing?
may you not have been stubbing?
may he not have been stubbing?
may we not have been stubbing?
may you not have been stubbing?
may they not have been stubbing?