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