could x-ray
Regular verb: x-ray - x-rayed- x-rayed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could x-ray
you could x-ray
he could x-ray
we could x-ray
you could x-ray
they could x-ray 	I could be x-raying
you could be x-raying
he could be x-raying
we could be x-raying
you could be x-raying
they could be x-raying	I could have x-rayed
you could have x-rayed
he could have x-rayed
we could have x-rayed
you could have x-rayed
they could have x-rayed	I could have been x-raying
you could have been x-raying
he could have been x-raying
we could have been x-raying
you could have been x-raying
they could have been x-raying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't x-ray
you couldn't x-ray
he couldn't x-ray
we couldn't x-ray
you couldn't x-ray
they couldn't x-ray 	I couldn't be x-raying
you couldn't be x-raying
he couldn't be x-raying
we couldn't be x-raying
you couldn't be x-raying
they couldn't be x-raying	I couldn't have x-rayed
you couldn't have x-rayed
he couldn't have x-rayed
we couldn't have x-rayed
you couldn't have x-rayed
they couldn't have x-rayed	I couldn't have been x-raying
you couldn't have been x-raying
he couldn't have been x-raying
we couldn't have been x-raying
you couldn't have been x-raying
they couldn't have been x-raying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I x-ray?
could you x-ray?
could he x-ray?
could we x-ray?
could you x-ray?
could they x-ray? 	could I be x-raying?
could you be x-raying?
could he be x-raying?
could we be x-raying?
could you be x-raying?
could they be x-raying? 	could I have x-rayed?
could you have x-rayed?
could he have x-rayed?
could we have x-rayed?
could you have x-rayed?
could they have x-rayed? 	could I have been x-raying?
could you have been x-raying?
could he have been x-raying?
could we have been x-raying?
could you have been x-raying?
could they have been x-raying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I x-ray?
couldn't you x-ray?
couldn't he x-ray?
couldn't we x-ray?
couldn't you x-ray?
couldn't they x-ray? 	couldn't I be x-raying?
couldn't you be x-raying?
couldn't he be x-raying?
couldn't we be x-raying?
couldn't you be x-raying?
couldn't they be x-raying? 	couldn't I have x-rayed?
couldn't you have x-rayed?
couldn't he have x-rayed?
couldn't we have x-rayed?
couldn't you have x-rayed?
couldn't they have x-rayed? 	couldn't I have been x-raying?
couldn't you have been x-raying?
couldn't he have been x-raying?
couldn't we have been x-raying?
couldn't you have been x-raying?
couldn't they have been x-raying?