I could digress you could digress he could digress we could digress you could digress they could digress
V-ing form
I could be digressing you could be digressing he could be digressing we could be digressing you could be digressing they could be digressing
Perfect
I could have digressed you could have digressed he could have digressed we could have digressed you could have digressed they could have digressed
V-ing perfect
I could have been digressing you could have been digressing he could have been digressing we could have been digressing you could have been digressing they could have been digressing
Negation
Simple form
I could not digress you could not digress he could not digress we could not digress you could not digress they could not digress
V-ing form
I could not be digressing you could not be digressing he could not be digressing we could not be digressing you could not be digressing they could not be digressing
Perfect
I could not have digressed you could not have digressed he could not have digressed we could not have digressed you could not have digressed they could not have digressed
V-ing perfect
I could not have been digressing you could not have been digressing he could not have been digressing we could not have been digressing you could not have been digressing they could not have been digressing
Interrogative form
Simple form
could I digress? could you digress? could he digress? could we digress? could you digress? could they digress?
V-ing form
could I be digressing? could you be digressing? could he be digressing? could we be digressing? could you be digressing? could they be digressing?
Perfect
could I have digressed? could you have digressed? could he have digressed? could we have digressed? could you have digressed? could they have digressed?
V-ing perfect
could I have been digressing? could you have been digressing? could he have been digressing? could we have been digressing? could you have been digressing? could they have been digressing?
Interro-negative form
Simple form
could I not digress? could you not digress? could he not digress? could we not digress? could you not digress? could they not digress?
V-ing form
could I not be digressing? could you not be digressing? could he not be digressing? could we not be digressing? could you not be digressing? could they not be digressing?
Perfect
could I not have digressed? could you not have digressed? could he not have digressed? could we not have digressed? could you not have digressed? could they not have digressed?
V-ing perfect
could I not have been digressing? could you not have been digressing? could he not have been digressing? could we not have been digressing? could you not have been digressing? could they not have been digressing?