I could egress you could egress she could egress we could egress you could egress they could egress
V-ing form
I could be egressing you could be egressing she could be egressing we could be egressing you could be egressing they could be egressing
Perfect
I could have egressed you could have egressed she 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 she could have been egressing we could have been egressing you could have been egressing they could have been egressing
Negation
Simple form
I couldn't egress you couldn't egress she couldn't egress we couldn't egress you couldn't egress they couldn't egress
V-ing form
I couldn't be egressing you couldn't be egressing she couldn't be egressing we couldn't be egressing you couldn't be egressing they couldn't be egressing
Perfect
I couldn't have egressed you couldn't have egressed she couldn't have egressed we couldn't have egressed you couldn't have egressed they couldn't have egressed
V-ing perfect
I couldn't have been egressing you couldn't have been egressing she couldn't have been egressing we couldn't have been egressing you couldn't have been egressing they couldn't have been egressing
Interrogative form
Simple form
could I egress? could you egress? could she egress? could we egress? could you egress? could they egress?
V-ing form
could I be egressing? could you be egressing? could she be egressing? could we be egressing? could you be egressing? could they be egressing?
Perfect
could I have egressed? could you have egressed? could she 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 she have been egressing? could we have been egressing? could you have been egressing? could they have been egressing?
Interro-negative form
Simple form
couldn't I egress? couldn't you egress? couldn't she egress? couldn't we egress? couldn't you egress? couldn't they egress?
V-ing form
couldn't I be egressing? couldn't you be egressing? couldn't she be egressing? couldn't we be egressing? couldn't you be egressing? couldn't they be egressing?
Perfect
couldn't I have egressed? couldn't you have egressed? couldn't she have egressed? couldn't we have egressed? couldn't you have egressed? couldn't they have egressed?
V-ing perfect
couldn't I have been egressing? couldn't you have been egressing? couldn't she have been egressing? couldn't we have been egressing? couldn't you have been egressing? couldn't they have been egressing?