could fire
Verbo regular: fire - fired- fired

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could fire
you could fire
she could fire
we could fire
you could fire
they could fire 	I could be firing
you could be firing
she could be firing
we could be firing
you could be firing
they could be firing	I could have fired
you could have fired
she could have fired
we could have fired
you could have fired
they could have fired	I could have been firing
you could have been firing
she could have been firing
we could have been firing
you could have been firing
they could have been firing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not fire
you could not fire
she could not fire
we could not fire
you could not fire
they could not fire 	I could not be firing
you could not be firing
she could not be firing
we could not be firing
you could not be firing
they could not be firing	I could not have fired
you could not have fired
she could not have fired
we could not have fired
you could not have fired
they could not have fired	I could not have been firing
you could not have been firing
she could not have been firing
we could not have been firing
you could not have been firing
they could not have been firing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I fire?
could you fire?
could she fire?
could we fire?
could you fire?
could they fire? 	could I be firing?
could you be firing?
could she be firing?
could we be firing?
could you be firing?
could they be firing? 	could I have fired?
could you have fired?
could she have fired?
could we have fired?
could you have fired?
could they have fired? 	could I have been firing?
could you have been firing?
could she have been firing?
could we have been firing?
could you have been firing?
could they have been firing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not fire?
could you not fire?
could she not fire?
could we not fire?
could you not fire?
could they not fire? 	could I not be firing?
could you not be firing?
could she not be firing?
could we not be firing?
could you not be firing?
could they not be firing? 	could I not have fired?
could you not have fired?
could she not have fired?
could we not have fired?
could you not have fired?
could they not have fired? 	could I not have been firing?
could you not have been firing?
could she not have been firing?
could we not have been firing?
could you not have been firing?
could they not have been firing?