Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could kid so you could kid so he could kid so we could kid so you could kid so they could kid so
V-ing form
I could be kid soing you could be kid soing he could be kid soing we could be kid soing you could be kid soing they could be kid soing
Perfect
I could have kid soed you could have kid soed he could have kid soed we could have kid soed you could have kid soed they could have kid soed
V-ing perfect
I could have been kid soing you could have been kid soing he could have been kid soing we could have been kid soing you could have been kid soing they could have been kid soing
Negation
Simple form
I could not kid so you could not kid so he could not kid so we could not kid so you could not kid so they could not kid so
V-ing form
I could not be kid soing you could not be kid soing he could not be kid soing we could not be kid soing you could not be kid soing they could not be kid soing
Perfect
I could not have kid soed you could not have kid soed he could not have kid soed we could not have kid soed you could not have kid soed they could not have kid soed
V-ing perfect
I could not have been kid soing you could not have been kid soing he could not have been kid soing we could not have been kid soing you could not have been kid soing they could not have been kid soing
Interrogative form
Simple form
could I kid so? could you kid so? could he kid so? could we kid so? could you kid so? could they kid so?
V-ing form
could I be kid soing? could you be kid soing? could he be kid soing? could we be kid soing? could you be kid soing? could they be kid soing?
Perfect
could I have kid soed? could you have kid soed? could he have kid soed? could we have kid soed? could you have kid soed? could they have kid soed?
V-ing perfect
could I have been kid soing? could you have been kid soing? could he have been kid soing? could we have been kid soing? could you have been kid soing? could they have been kid soing?
Interro-negative form
Simple form
could I not kid so? could you not kid so? could he not kid so? could we not kid so? could you not kid so? could they not kid so?
V-ing form
could I not be kid soing? could you not be kid soing? could he not be kid soing? could we not be kid soing? could you not be kid soing? could they not be kid soing?
Perfect
could I not have kid soed? could you not have kid soed? could he not have kid soed? could we not have kid soed? could you not have kid soed? could they not have kid soed?
V-ing perfect
could I not have been kid soing? could you not have been kid soing? could he not have been kid soing? could we not have been kid soing? could you not have been kid soing? could they not have been kid soing?