I could egress you could egress he could egress we could egress you could egress they could egress
V-ing form
I could be egressing you could be egressing he could be egressing we could be egressing you could be egressing they could be egressing
Perfect
I could have egressed you could have egressed he could have egressed we could have egressed you could have egressed they could have egressed
V-ing perfect
I could have been egressing you could have been egressing he could have been egressing we could have been egressing you could have been egressing they could have been egressing
Negation
Simple form
I could not egress you could not egress he could not egress we could not egress you could not egress they could not egress
V-ing form
I could not be egressing you could not be egressing he could not be egressing we could not be egressing you could not be egressing they could not be egressing
Perfect
I could not have egressed you could not have egressed he could not have egressed we could not have egressed you could not have egressed they could not have egressed
V-ing perfect
I could not have been egressing you could not have been egressing he could not have been egressing we could not have been egressing you could not have been egressing they could not have been egressing
Interrogative form
Simple form
could I egress? could you egress? could he egress? could we egress? could you egress? could they egress?
V-ing form
could I be egressing? could you be egressing? could he be egressing? could we be egressing? could you be egressing? could they be egressing?
Perfect
could I have egressed? could you have egressed? could he have egressed? could we have egressed? could you have egressed? could they have egressed?
V-ing perfect
could I have been egressing? could you have been egressing? could he have been egressing? could we have been egressing? could you have been egressing? could they have been egressing?
Interro-negative form
Simple form
could I not egress? could you not egress? could he not egress? could we not egress? could you not egress? could they not egress?
V-ing form
could I not be egressing? could you not be egressing? could he not be egressing? could we not be egressing? could you not be egressing? could they not be egressing?
Perfect
could I not have egressed? could you not have egressed? could he not have egressed? could we not have egressed? could you not have egressed? could they not have egressed?
V-ing perfect
could I not have been egressing? could you not have been egressing? could he not have been egressing? could we not have been egressing? could you not have been egressing? could they not have been egressing?