could anneal
Verbo regular: anneal - annealed- annealed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could anneal
you could anneal
he could anneal
we could anneal
you could anneal
they could anneal 	I could be annealing
you could be annealing
he could be annealing
we could be annealing
you could be annealing
they could be annealing	I could have annealed
you could have annealed
he could have annealed
we could have annealed
you could have annealed
they could have annealed	I could have been annealing
you could have been annealing
he could have been annealing
we could have been annealing
you could have been annealing
they could have been annealing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not anneal
you could not anneal
he could not anneal
we could not anneal
you could not anneal
they could not anneal 	I could not be annealing
you could not be annealing
he could not be annealing
we could not be annealing
you could not be annealing
they could not be annealing	I could not have annealed
you could not have annealed
he could not have annealed
we could not have annealed
you could not have annealed
they could not have annealed	I could not have been annealing
you could not have been annealing
he could not have been annealing
we could not have been annealing
you could not have been annealing
they could not have been annealing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I anneal?
could you anneal?
could he anneal?
could we anneal?
could you anneal?
could they anneal? 	could I be annealing?
could you be annealing?
could he be annealing?
could we be annealing?
could you be annealing?
could they be annealing? 	could I have annealed?
could you have annealed?
could he have annealed?
could we have annealed?
could you have annealed?
could they have annealed? 	could I have been annealing?
could you have been annealing?
could he have been annealing?
could we have been annealing?
could you have been annealing?
could they have been annealing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not anneal?
could you not anneal?
could he not anneal?
could we not anneal?
could you not anneal?
could they not anneal? 	could I not be annealing?
could you not be annealing?
could he not be annealing?
could we not be annealing?
could you not be annealing?
could they not be annealing? 	could I not have annealed?
could you not have annealed?
could he not have annealed?
could we not have annealed?
could you not have annealed?
could they not have annealed? 	could I not have been annealing?
could you not have been annealing?
could he not have been annealing?
could we not have been annealing?
could you not have been annealing?
could they not have been annealing?