could arrive
Verbo regular: arrive - arrived- arrived

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could arrive
you could arrive
he could arrive
we could arrive
you could arrive
they could arrive 	I could be arriving
you could be arriving
he could be arriving
we could be arriving
you could be arriving
they could be arriving	I could have arrived
you could have arrived
he could have arrived
we could have arrived
you could have arrived
they could have arrived	I could have been arriving
you could have been arriving
he could have been arriving
we could have been arriving
you could have been arriving
they could have been arriving	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not arrive
you could not arrive
he could not arrive
we could not arrive
you could not arrive
they could not arrive 	I could not be arriving
you could not be arriving
he could not be arriving
we could not be arriving
you could not be arriving
they could not be arriving	I could not have arrived
you could not have arrived
he could not have arrived
we could not have arrived
you could not have arrived
they could not have arrived	I could not have been arriving
you could not have been arriving
he could not have been arriving
we could not have been arriving
you could not have been arriving
they could not have been arriving	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I arrive?
could you arrive?
could he arrive?
could we arrive?
could you arrive?
could they arrive? 	could I be arriving?
could you be arriving?
could he be arriving?
could we be arriving?
could you be arriving?
could they be arriving? 	could I have arrived?
could you have arrived?
could he have arrived?
could we have arrived?
could you have arrived?
could they have arrived? 	could I have been arriving?
could you have been arriving?
could he have been arriving?
could we have been arriving?
could you have been arriving?
could they have been arriving? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not arrive?
could you not arrive?
could he not arrive?
could we not arrive?
could you not arrive?
could they not arrive? 	could I not be arriving?
could you not be arriving?
could he not be arriving?
could we not be arriving?
could you not be arriving?
could they not be arriving? 	could I not have arrived?
could you not have arrived?
could he not have arrived?
could we not have arrived?
could you not have arrived?
could they not have arrived? 	could I not have been arriving?
could you not have been arriving?
could he not have been arriving?
could we not have been arriving?
could you not have been arriving?
could they not have been arriving?