could fire
Regular verb: fire - fired- fired

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't fire
you couldn't fire
she 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
she 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
she 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
she 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 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? 	

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