could fire
Regular verb: fire - fired- fired

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could fire
you could fire
he could fire
we could fire
you could fire
they could fire 	I could be firing
you could be firing
he could be firing
we could be firing
you could be firing
they could be firing	I could have fired
you could have fired
he 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
he could have been firing
we could have been firing
you could have been firing
they could have been firing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't fire
you couldn't fire
he couldn't fire
we couldn't fire
you couldn't fire
they couldn't fire 	I couldn't be firing
you couldn't be firing
he couldn't be firing
we couldn't be firing
you couldn't be firing
they couldn't be firing	I couldn't have fired
you couldn't have fired
he couldn't have fired
we couldn't have fired
you couldn't have fired
they couldn't have fired	I couldn't have been firing
you couldn't have been firing
he couldn't have been firing
we couldn't have been firing
you couldn't have been firing
they couldn't have been firing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I fire?
could you fire?
could he fire?
could we fire?
could you fire?
could they fire? 	could I be firing?
could you be firing?
could he be firing?
could we be firing?
could you be firing?
could they be firing? 	could I have fired?
could you have fired?
could he 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 he have been firing?
could we have been firing?
could you have been firing?
could they have been firing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I fire?
couldn't you fire?
couldn't he fire?
couldn't we fire?
couldn't you fire?
couldn't they fire? 	couldn't I be firing?
couldn't you be firing?
couldn't he be firing?
couldn't we be firing?
couldn't you be firing?
couldn't they be firing? 	couldn't I have fired?
couldn't you have fired?
couldn't he have fired?
couldn't we have fired?
couldn't you have fired?
couldn't they have fired? 	couldn't I have been firing?
couldn't you have been firing?
couldn't he have been firing?
couldn't we have been firing?
couldn't you have been firing?
couldn't they have been firing?