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