Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could talk chat converse you could talk chat converse he could talk chat converse we could talk chat converse you could talk chat converse they could talk chat converse
V-ing form
I could be talk chat conversing you could be talk chat conversing he could be talk chat conversing we could be talk chat conversing you could be talk chat conversing they could be talk chat conversing
Perfect
I could have talk chat conversed you could have talk chat conversed he could have talk chat conversed we could have talk chat conversed you could have talk chat conversed they could have talk chat conversed
V-ing perfect
I could have been talk chat conversing you could have been talk chat conversing he could have been talk chat conversing we could have been talk chat conversing you could have been talk chat conversing they could have been talk chat conversing
Negation
Simple form
I could not talk chat converse you could not talk chat converse he could not talk chat converse we could not talk chat converse you could not talk chat converse they could not talk chat converse
V-ing form
I could not be talk chat conversing you could not be talk chat conversing he could not be talk chat conversing we could not be talk chat conversing you could not be talk chat conversing they could not be talk chat conversing
Perfect
I could not have talk chat conversed you could not have talk chat conversed he could not have talk chat conversed we could not have talk chat conversed you could not have talk chat conversed they could not have talk chat conversed
V-ing perfect
I could not have been talk chat conversing you could not have been talk chat conversing he could not have been talk chat conversing we could not have been talk chat conversing you could not have been talk chat conversing they could not have been talk chat conversing
Interrogative form
Simple form
could I talk chat converse? could you talk chat converse? could he talk chat converse? could we talk chat converse? could you talk chat converse? could they talk chat converse?
V-ing form
could I be talk chat conversing? could you be talk chat conversing? could he be talk chat conversing? could we be talk chat conversing? could you be talk chat conversing? could they be talk chat conversing?
Perfect
could I have talk chat conversed? could you have talk chat conversed? could he have talk chat conversed? could we have talk chat conversed? could you have talk chat conversed? could they have talk chat conversed?
V-ing perfect
could I have been talk chat conversing? could you have been talk chat conversing? could he have been talk chat conversing? could we have been talk chat conversing? could you have been talk chat conversing? could they have been talk chat conversing?
Interro-negative form
Simple form
could I not talk chat converse? could you not talk chat converse? could he not talk chat converse? could we not talk chat converse? could you not talk chat converse? could they not talk chat converse?
V-ing form
could I not be talk chat conversing? could you not be talk chat conversing? could he not be talk chat conversing? could we not be talk chat conversing? could you not be talk chat conversing? could they not be talk chat conversing?
Perfect
could I not have talk chat conversed? could you not have talk chat conversed? could he not have talk chat conversed? could we not have talk chat conversed? could you not have talk chat conversed? could they not have talk chat conversed?
V-ing perfect
could I not have been talk chat conversing? could you not have been talk chat conversing? could he not have been talk chat conversing? could we not have been talk chat conversing? could you not have been talk chat conversing? could they not have been talk chat conversing?