Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could chinese you could chinese she could chinese we could chinese you could chinese they could chinese
V-ing form
I could be chinesing you could be chinesing she could be chinesing we could be chinesing you could be chinesing they could be chinesing
Perfect
I could have chinesed you could have chinesed she could have chinesed we could have chinesed you could have chinesed they could have chinesed
V-ing perfect
I could have been chinesing you could have been chinesing she could have been chinesing we could have been chinesing you could have been chinesing they could have been chinesing
Negation
Simple form
I could not chinese you could not chinese she could not chinese we could not chinese you could not chinese they could not chinese
V-ing form
I could not be chinesing you could not be chinesing she could not be chinesing we could not be chinesing you could not be chinesing they could not be chinesing
Perfect
I could not have chinesed you could not have chinesed she could not have chinesed we could not have chinesed you could not have chinesed they could not have chinesed
V-ing perfect
I could not have been chinesing you could not have been chinesing she could not have been chinesing we could not have been chinesing you could not have been chinesing they could not have been chinesing
Interrogative form
Simple form
could I chinese? could you chinese? could she chinese? could we chinese? could you chinese? could they chinese?
V-ing form
could I be chinesing? could you be chinesing? could she be chinesing? could we be chinesing? could you be chinesing? could they be chinesing?
Perfect
could I have chinesed? could you have chinesed? could she have chinesed? could we have chinesed? could you have chinesed? could they have chinesed?
V-ing perfect
could I have been chinesing? could you have been chinesing? could she have been chinesing? could we have been chinesing? could you have been chinesing? could they have been chinesing?
Interro-negative form
Simple form
could I not chinese? could you not chinese? could she not chinese? could we not chinese? could you not chinese? could they not chinese?
V-ing form
could I not be chinesing? could you not be chinesing? could she not be chinesing? could we not be chinesing? could you not be chinesing? could they not be chinesing?
Perfect
could I not have chinesed? could you not have chinesed? could she not have chinesed? could we not have chinesed? could you not have chinesed? could they not have chinesed?
V-ing perfect
could I not have been chinesing? could you not have been chinesing? could she not have been chinesing? could we not have been chinesing? could you not have been chinesing? could they not have been chinesing?