could disco
Regular verb: disco - discoed- discoed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could disco
you could disco
he could disco
we could disco
you could disco
they could disco 	I could be discoing
you could be discoing
he could be discoing
we could be discoing
you could be discoing
they could be discoing	I could have discoed
you could have discoed
he could have discoed
we could have discoed
you could have discoed
they could have discoed	I could have been discoing
you could have been discoing
he could have been discoing
we could have been discoing
you could have been discoing
they could have been discoing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't disco
you couldn't disco
he couldn't disco
we couldn't disco
you couldn't disco
they couldn't disco 	I couldn't be discoing
you couldn't be discoing
he couldn't be discoing
we couldn't be discoing
you couldn't be discoing
they couldn't be discoing	I couldn't have discoed
you couldn't have discoed
he couldn't have discoed
we couldn't have discoed
you couldn't have discoed
they couldn't have discoed	I couldn't have been discoing
you couldn't have been discoing
he couldn't have been discoing
we couldn't have been discoing
you couldn't have been discoing
they couldn't have been discoing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I disco?
could you disco?
could he disco?
could we disco?
could you disco?
could they disco? 	could I be discoing?
could you be discoing?
could he be discoing?
could we be discoing?
could you be discoing?
could they be discoing? 	could I have discoed?
could you have discoed?
could he have discoed?
could we have discoed?
could you have discoed?
could they have discoed? 	could I have been discoing?
could you have been discoing?
could he have been discoing?
could we have been discoing?
could you have been discoing?
could they have been discoing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I disco?
couldn't you disco?
couldn't he disco?
couldn't we disco?
couldn't you disco?
couldn't they disco? 	couldn't I be discoing?
couldn't you be discoing?
couldn't he be discoing?
couldn't we be discoing?
couldn't you be discoing?
couldn't they be discoing? 	couldn't I have discoed?
couldn't you have discoed?
couldn't he have discoed?
couldn't we have discoed?
couldn't you have discoed?
couldn't they have discoed? 	couldn't I have been discoing?
couldn't you have been discoing?
couldn't he have been discoing?
couldn't we have been discoing?
couldn't you have been discoing?
couldn't they have been discoing?