can fire
Regular verb: fire - fired- fired

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot fire
you cannot fire
she cannot fire
we cannot fire
you cannot fire
they cannot fire 	I cannot be firing
you cannot be firing
she cannot be firing
we cannot be firing
you cannot be firing
they cannot be firing	I cannot have fired
you cannot have fired
she cannot have fired
we cannot have fired
you cannot have fired
they cannot have fired	I cannot have been firing
you cannot have been firing
she cannot have been firing
we cannot have been firing
you cannot have been firing
they cannot have been firing	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not fire?
can you not fire?
can she not fire?
can we not fire?
can you not fire?
can they not fire? 	can I not be firing?
can you not be firing?
can she not be firing?
can we not be firing?
can you not be firing?
can they not be firing? 	can I not have fired?
can you not have fired?
can she not have fired?
can we not have fired?
can you not have fired?
can they not have fired? 	can I not have been firing?
can you not have been firing?
can she not have been firing?
can we not have been firing?
can you not have been firing?
can they not have been firing?