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