can rail
Verbo regular: rail - railed- railed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can rail
you can rail
he can rail
we can rail
you can rail
they can rail 	I can be railing
you can be railing
he can be railing
we can be railing
you can be railing
they can be railing	I can have railed
you can have railed
he can have railed
we can have railed
you can have railed
they can have railed	I can have been railing
you can have been railing
he can have been railing
we can have been railing
you can have been railing
they can have been railing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot rail
you cannot rail
he cannot rail
we cannot rail
you cannot rail
they cannot rail 	I cannot be railing
you cannot be railing
he cannot be railing
we cannot be railing
you cannot be railing
they cannot be railing	I cannot have railed
you cannot have railed
he cannot have railed
we cannot have railed
you cannot have railed
they cannot have railed	I cannot have been railing
you cannot have been railing
he cannot have been railing
we cannot have been railing
you cannot have been railing
they cannot have been railing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I rail?
can you rail?
can he rail?
can we rail?
can you rail?
can they rail? 	can I be railing?
can you be railing?
can he be railing?
can we be railing?
can you be railing?
can they be railing? 	can I have railed?
can you have railed?
can he have railed?
can we have railed?
can you have railed?
can they have railed? 	can I have been railing?
can you have been railing?
can he have been railing?
can we have been railing?
can you have been railing?
can they have been railing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not rail?
can you not rail?
can he not rail?
can we not rail?
can you not rail?
can they not rail? 	can I not be railing?
can you not be railing?
can he not be railing?
can we not be railing?
can you not be railing?
can they not be railing? 	can I not have railed?
can you not have railed?
can he not have railed?
can we not have railed?
can you not have railed?
can they not have railed? 	can I not have been railing?
can you not have been railing?
can he not have been railing?
can we not have been railing?
can you not have been railing?
can they not have been railing?