may register
Verbo regular: register - registered- registered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may register
you may register
he may register
we may register
you may register
they may register 	I may be registering
you may be registering
he may be registering
we may be registering
you may be registering
they may be registering	I may have registered
you may have registered
he may have registered
we may have registered
you may have registered
they may have registered	I may have been registering
you may have been registering
he may have been registering
we may have been registering
you may have been registering
they may have been registering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may not register
you may not register
he may not register
we may not register
you may not register
they may not register 	I may not be registering
you may not be registering
he may not be registering
we may not be registering
you may not be registering
they may not be registering	I may not have registered
you may not have registered
he may not have registered
we may not have registered
you may not have registered
they may not have registered	I may not have been registering
you may not have been registering
he may not have been registering
we may not have been registering
you may not have been registering
they may not have been registering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I register?
may you register?
may he register?
may we register?
may you register?
may they register? 	may I be registering?
may you be registering?
may he be registering?
may we be registering?
may you be registering?
may they be registering? 	may I have registered?
may you have registered?
may he have registered?
may we have registered?
may you have registered?
may they have registered? 	may I have been registering?
may you have been registering?
may he have been registering?
may we have been registering?
may you have been registering?
may they have been registering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I not register?
may you not register?
may he not register?
may we not register?
may you not register?
may they not register? 	may I not be registering?
may you not be registering?
may he not be registering?
may we not be registering?
may you not be registering?
may they not be registering? 	may I not have registered?
may you not have registered?
may he not have registered?
may we not have registered?
may you not have registered?
may they not have registered? 	may I not have been registering?
may you not have been registering?
may he not have been registering?
may we not have been registering?
may you not have been registering?
may they not have been registering?