may rub
Verbo regular: rub - rubbed- rubbed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may rub
you may rub
he may rub
we may rub
you may rub
they may rub 	I may be rubbing
you may be rubbing
he may be rubbing
we may be rubbing
you may be rubbing
they may be rubbing	I may have rubbed
you may have rubbed
he may have rubbed
we may have rubbed
you may have rubbed
they may have rubbed	I may have been rubbing
you may have been rubbing
he may have been rubbing
we may have been rubbing
you may have been rubbing
they may have been rubbing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may not rub
you may not rub
he may not rub
we may not rub
you may not rub
they may not rub 	I may not be rubbing
you may not be rubbing
he may not be rubbing
we may not be rubbing
you may not be rubbing
they may not be rubbing	I may not have rubbed
you may not have rubbed
he may not have rubbed
we may not have rubbed
you may not have rubbed
they may not have rubbed	I may not have been rubbing
you may not have been rubbing
he may not have been rubbing
we may not have been rubbing
you may not have been rubbing
they may not have been rubbing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I rub?
may you rub?
may he rub?
may we rub?
may you rub?
may they rub? 	may I be rubbing?
may you be rubbing?
may he be rubbing?
may we be rubbing?
may you be rubbing?
may they be rubbing? 	may I have rubbed?
may you have rubbed?
may he have rubbed?
may we have rubbed?
may you have rubbed?
may they have rubbed? 	may I have been rubbing?
may you have been rubbing?
may he have been rubbing?
may we have been rubbing?
may you have been rubbing?
may they have been rubbing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I not rub?
may you not rub?
may he not rub?
may we not rub?
may you not rub?
may they not rub? 	may I not be rubbing?
may you not be rubbing?
may he not be rubbing?
may we not be rubbing?
may you not be rubbing?
may they not be rubbing? 	may I not have rubbed?
may you not have rubbed?
may he not have rubbed?
may we not have rubbed?
may you not have rubbed?
may they not have rubbed? 	may I not have been rubbing?
may you not have been rubbing?
may he not have been rubbing?
may we not have been rubbing?
may you not have been rubbing?
may they not have been rubbing?