I could declare you could declare she could declare we could declare you could declare they could declare
V-ing form
I could be declaring you could be declaring she could be declaring we could be declaring you could be declaring they could be declaring
Perfect
I could have declared you could have declared she could have declared we could have declared you could have declared they could have declared
V-ing perfect
I could have been declaring you could have been declaring she could have been declaring we could have been declaring you could have been declaring they could have been declaring
Negation
Simple form
I could not declare you could not declare she could not declare we could not declare you could not declare they could not declare
V-ing form
I could not be declaring you could not be declaring she could not be declaring we could not be declaring you could not be declaring they could not be declaring
Perfect
I could not have declared you could not have declared she could not have declared we could not have declared you could not have declared they could not have declared
V-ing perfect
I could not have been declaring you could not have been declaring she could not have been declaring we could not have been declaring you could not have been declaring they could not have been declaring
Interrogative form
Simple form
could I declare? could you declare? could she declare? could we declare? could you declare? could they declare?
V-ing form
could I be declaring? could you be declaring? could she be declaring? could we be declaring? could you be declaring? could they be declaring?
Perfect
could I have declared? could you have declared? could she have declared? could we have declared? could you have declared? could they have declared?
V-ing perfect
could I have been declaring? could you have been declaring? could she have been declaring? could we have been declaring? could you have been declaring? could they have been declaring?
Interro-negative form
Simple form
could I not declare? could you not declare? could she not declare? could we not declare? could you not declare? could they not declare?
V-ing form
could I not be declaring? could you not be declaring? could she not be declaring? could we not be declaring? could you not be declaring? could they not be declaring?
Perfect
could I not have declared? could you not have declared? could she not have declared? could we not have declared? could you not have declared? could they not have declared?
V-ing perfect
could I not have been declaring? could you not have been declaring? could she not have been declaring? could we not have been declaring? could you not have been declaring? could they not have been declaring?