I should invoke you should invoke he should invoke we should invoke you should invoke they should invoke
V-ing form
I should be invoking you should be invoking he should be invoking we should be invoking you should be invoking they should be invoking
Perfect
I should have invoked you should have invoked he should have invoked we should have invoked you should have invoked they should have invoked
V-ing perfect
I should have been invoking you should have been invoking he should have been invoking we should have been invoking you should have been invoking they should have been invoking
Negation
Simple form
I should not invoke you should not invoke he should not invoke we should not invoke you should not invoke they should not invoke
V-ing form
I should not be invoking you should not be invoking he should not be invoking we should not be invoking you should not be invoking they should not be invoking
Perfect
I should not have invoked you should not have invoked he should not have invoked we should not have invoked you should not have invoked they should not have invoked
V-ing perfect
I should not have been invoking you should not have been invoking he should not have been invoking we should not have been invoking you should not have been invoking they should not have been invoking
Interrogative form
Simple form
should I invoke? should you invoke? should he invoke? should we invoke? should you invoke? should they invoke?
V-ing form
should I be invoking? should you be invoking? should he be invoking? should we be invoking? should you be invoking? should they be invoking?
Perfect
should I have invoked? should you have invoked? should he have invoked? should we have invoked? should you have invoked? should they have invoked?
V-ing perfect
should I have been invoking? should you have been invoking? should he have been invoking? should we have been invoking? should you have been invoking? should they have been invoking?
Interro-negative form
Simple form
should I not invoke? should you not invoke? should he not invoke? should we not invoke? should you not invoke? should they not invoke?
V-ing form
should I not be invoking? should you not be invoking? should he not be invoking? should we not be invoking? should you not be invoking? should they not be invoking?
Perfect
should I not have invoked? should you not have invoked? should he not have invoked? should we not have invoked? should you not have invoked? should they not have invoked?
V-ing perfect
should I not have been invoking? should you not have been invoking? should he not have been invoking? should we not have been invoking? should you not have been invoking? should they not have been invoking?