English verb conjugation
CAN DECLARE

Regular verb: declare - declared - declared

Affirmation

Simple form	V-ing form
I can declare you can declare he can declare we can declare you can declare they can declare	I can be declaring you can be declaring he can be declaring we can be declaring you can be declaring they can be declaring
Perfect	V-ing perfect
I can have declared you can have declared he can have declared we can have declared you can have declared they can have declared	I can have been declaring you can have been declaring he can have been declaring we can have been declaring you can have been declaring they can have been declaring

Negation

Simple form	V-ing form
I cannot declare you cannot declare he cannot declare we cannot declare you cannot declare they cannot declare	I cannot be declaring you cannot be declaring he cannot be declaring we cannot be declaring you cannot be declaring they cannot be declaring
Perfect	V-ing perfect
I cannot have declared you cannot have declared he cannot have declared we cannot have declared you cannot have declared they cannot have declared	I cannot have been declaring you cannot have been declaring he cannot have been declaring we cannot have been declaring you cannot have been declaring they cannot have been declaring

Interrogative form

Simple form	V-ing form
can I declare? can you declare? can he declare? can we declare? can you declare? can they declare?	can I be declaring? can you be declaring? can he be declaring? can we be declaring? can you be declaring? can they be declaring?
Perfect	V-ing perfect
can I have declared? can you have declared? can he have declared? can we have declared? can you have declared? can they have declared?	can I have been declaring? can you have been declaring? can he have been declaring? can we have been declaring? can you have been declaring? can they have been declaring?

Interro-negative form

Simple form	V-ing form
can I not declare? can you not declare? can he not declare? can we not declare? can you not declare? can they not declare?	can I not be declaring? can you not be declaring? can he not be declaring? can we not be declaring? can you not be declaring? can they not be declaring?
Perfect	V-ing perfect
can I not have declared? can you not have declared? can he not have declared? can we not have declared? can you not have declared? can they not have declared?	can I not have been declaring? can you not have been declaring? can he not have been declaring? can we not have been declaring? can you not have been declaring? can they not have been declaring?