English verb conjugation
COULD DISCO

Regular verb: disco - discoed - discoed

Affirmation

Simple form	V-ing form
I could disco you could disco she could disco we could disco you could disco they could disco	I could be discoing you could be discoing she could be discoing we could be discoing you could be discoing they could be discoing
Perfect	V-ing perfect
I could have discoed you could have discoed she 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 she 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
I could not disco you could not disco she could not disco we could not disco you could not disco they could not disco	I could not be discoing you could not be discoing she could not be discoing we could not be discoing you could not be discoing they could not be discoing
Perfect	V-ing perfect
I could not have discoed you could not have discoed she could not have discoed we could not have discoed you could not have discoed they could not have discoed	I could not have been discoing you could not have been discoing she could not have been discoing we could not have been discoing you could not have been discoing they could not have been discoing

Interrogative form

Simple form	V-ing form
could I disco? could you disco? could she disco? could we disco? could you disco? could they disco?	could I be discoing? could you be discoing? could she be discoing? could we be discoing? could you be discoing? could they be discoing?
Perfect	V-ing perfect
could I have discoed? could you have discoed? could she 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 she 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
could I not disco? could you not disco? could she not disco? could we not disco? could you not disco? could they not disco?	could I not be discoing? could you not be discoing? could she not be discoing? could we not be discoing? could you not be discoing? could they not be discoing?
Perfect	V-ing perfect
could I not have discoed? could you not have discoed? could she not have discoed? could we not have discoed? could you not have discoed? could they not have discoed?	could I not have been discoing? could you not have been discoing? could she not have been discoing? could we not have been discoing? could you not have been discoing? could they not have been discoing?