Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could change one's arrangements you could change one's arrangements he could change one's arrangements we could change one's arrangements you could change one's arrangements they could change one's arrangements
V-ing form
I could be change one's arrangementsing you could be change one's arrangementsing he could be change one's arrangementsing we could be change one's arrangementsing you could be change one's arrangementsing they could be change one's arrangementsing
Perfect
I could have change one's arrangementsed you could have change one's arrangementsed he could have change one's arrangementsed we could have change one's arrangementsed you could have change one's arrangementsed they could have change one's arrangementsed
V-ing perfect
I could have been change one's arrangementsing you could have been change one's arrangementsing he could have been change one's arrangementsing we could have been change one's arrangementsing you could have been change one's arrangementsing they could have been change one's arrangementsing
Negation
Simple form
I could not change one's arrangements you could not change one's arrangements he could not change one's arrangements we could not change one's arrangements you could not change one's arrangements they could not change one's arrangements
V-ing form
I could not be change one's arrangementsing you could not be change one's arrangementsing he could not be change one's arrangementsing we could not be change one's arrangementsing you could not be change one's arrangementsing they could not be change one's arrangementsing
Perfect
I could not have change one's arrangementsed you could not have change one's arrangementsed he could not have change one's arrangementsed we could not have change one's arrangementsed you could not have change one's arrangementsed they could not have change one's arrangementsed
V-ing perfect
I could not have been change one's arrangementsing you could not have been change one's arrangementsing he could not have been change one's arrangementsing we could not have been change one's arrangementsing you could not have been change one's arrangementsing they could not have been change one's arrangementsing
Interrogative form
Simple form
could I change one's arrangements? could you change one's arrangements? could he change one's arrangements? could we change one's arrangements? could you change one's arrangements? could they change one's arrangements?
V-ing form
could I be change one's arrangementsing? could you be change one's arrangementsing? could he be change one's arrangementsing? could we be change one's arrangementsing? could you be change one's arrangementsing? could they be change one's arrangementsing?
Perfect
could I have change one's arrangementsed? could you have change one's arrangementsed? could he have change one's arrangementsed? could we have change one's arrangementsed? could you have change one's arrangementsed? could they have change one's arrangementsed?
V-ing perfect
could I have been change one's arrangementsing? could you have been change one's arrangementsing? could he have been change one's arrangementsing? could we have been change one's arrangementsing? could you have been change one's arrangementsing? could they have been change one's arrangementsing?
Interro-negative form
Simple form
could I not change one's arrangements? could you not change one's arrangements? could he not change one's arrangements? could we not change one's arrangements? could you not change one's arrangements? could they not change one's arrangements?
V-ing form
could I not be change one's arrangementsing? could you not be change one's arrangementsing? could he not be change one's arrangementsing? could we not be change one's arrangementsing? could you not be change one's arrangementsing? could they not be change one's arrangementsing?
Perfect
could I not have change one's arrangementsed? could you not have change one's arrangementsed? could he not have change one's arrangementsed? could we not have change one's arrangementsed? could you not have change one's arrangementsed? could they not have change one's arrangementsed?
V-ing perfect
could I not have been change one's arrangementsing? could you not have been change one's arrangementsing? could he not have been change one's arrangementsing? could we not have been change one's arrangementsing? could you not have been change one's arrangementsing? could they not have been change one's arrangementsing?