I can sorrow you can sorrow she can sorrow we can sorrow you can sorrow they can sorrow
V-ing form
I can be sorrowing you can be sorrowing she can be sorrowing we can be sorrowing you can be sorrowing they can be sorrowing
Perfect
I can have sorrowed you can have sorrowed she can have sorrowed we can have sorrowed you can have sorrowed they can have sorrowed
V-ing perfect
I can have been sorrowing you can have been sorrowing she can have been sorrowing we can have been sorrowing you can have been sorrowing they can have been sorrowing
Negation
Simple form
I cannot sorrow you cannot sorrow she cannot sorrow we cannot sorrow you cannot sorrow they cannot sorrow
V-ing form
I cannot be sorrowing you cannot be sorrowing she cannot be sorrowing we cannot be sorrowing you cannot be sorrowing they cannot be sorrowing
Perfect
I cannot have sorrowed you cannot have sorrowed she cannot have sorrowed we cannot have sorrowed you cannot have sorrowed they cannot have sorrowed
V-ing perfect
I cannot have been sorrowing you cannot have been sorrowing she cannot have been sorrowing we cannot have been sorrowing you cannot have been sorrowing they cannot have been sorrowing
Interrogative form
Simple form
can I sorrow? can you sorrow? can she sorrow? can we sorrow? can you sorrow? can they sorrow?
V-ing form
can I be sorrowing? can you be sorrowing? can she be sorrowing? can we be sorrowing? can you be sorrowing? can they be sorrowing?
Perfect
can I have sorrowed? can you have sorrowed? can she have sorrowed? can we have sorrowed? can you have sorrowed? can they have sorrowed?
V-ing perfect
can I have been sorrowing? can you have been sorrowing? can she have been sorrowing? can we have been sorrowing? can you have been sorrowing? can they have been sorrowing?
Interro-negative form
Simple form
can I not sorrow? can you not sorrow? can she not sorrow? can we not sorrow? can you not sorrow? can they not sorrow?
V-ing form
can I not be sorrowing? can you not be sorrowing? can she not be sorrowing? can we not be sorrowing? can you not be sorrowing? can they not be sorrowing?
Perfect
can I not have sorrowed? can you not have sorrowed? can she not have sorrowed? can we not have sorrowed? can you not have sorrowed? can they not have sorrowed?
V-ing perfect
can I not have been sorrowing? can you not have been sorrowing? can she not have been sorrowing? can we not have been sorrowing? can you not have been sorrowing? can they not have been sorrowing?